If your female cousin’s birthday is coming up soon, you’re definitely already working on a great birthday letter and a cute gift for her!
I’ve put together a lengthy list of heartfelt birthday wishes for your cousin sister that will elegantly wrap up your birthday surprise.
You can use these heartfelt birthday greetings for your cousin sister in a birthday card, as WhatsApp birthday texts, or as social media captions to let everyone know it’s her special day.
You’ll find many wonderful birthday wishes that you’ll adore, I have no doubt. Look at this!
Top 30 Birthday Wishes For Cousin Sister
Check out the ultimate best birthday wishes for cousin sister anywhere on the web!
1. “You are a magnificent flower in our family’s landscape. Happy birthday, cousin!”
2. “You are like eating a box of chocolates: sweet, generous, and undeniably amazing.”
3. “Cousins are a little slice of childhood. I’m grateful I had you in my life to love, cherish, and annoy. Happy birthday!”
4. “Even when no one else shows concern or care, a sister is someone who’ll always be there. Happy birthday.”
5. “It feels good to see you getting more mature and beautiful every year. You are growing up like a princess. Happy birthday, dear!”
6. “We are related to each other by blood. However, we are connected to each other through our hearts. Happy birthday, my cousin sister!”
7. “You are the one who made my childhood special and unforgettable. May your love and care for me never fade away. Happy B-day!”
8. “Each new birthday presents you with an open page. Fill it with love, joy, wisdom, and good deeds. Happy birthday!”
9. “The only person in this entire world who can turn my tears into a big smile. All I want to say is – I love you, sister. Wishing you a happy birthday.”
10. “When life doesn’t give great friends, it makes up for it by giving amazing cousins like you. Happy birthday.”
11. “Sisters like you are like beautiful diamonds: Only the fortunate have them. Wishing you a happy and prosperous birthday.”
12. “Every time there is a family get-together, I only look for you amongst all that crowd… Happy birthday, sister! Have a great year!”
13. “Happy birthday. Happiness is having you for my family. Cousins are like sisters and best friends, all rolled up into one! Have a beautiful day.”
14. “May God bless you with all the happiness and love, and fulfill all wishes today and always. Happiest birthday, lovely cousin sister!”
15. “Happy birthday, my sis from another miss! I’m truly blessed that we’re related, but even if we weren’t cousins, we’d still be best friends until the end of time. You really do mean the world to me, my dear.”
16. “You are so sweet that God must be having a hard time deciding on your birthday present.”
17. “Wishing a special birthday to my favorite sister! Even though we argue sometimes, you will forever remain my sweet little sister, and I will always love you.”
18. “I don’t care how much time passes between visits. I always feel like we were just together. I love being your cousin! Happy birthday!”
19. “Even though we’re just cousins to the outside world. I consider you one of my closest friends in my heart. Happy birthday, cousin.”
20. “No matter how far we go in life, our childhoods will always bring us together. Happy birthday.”
21. “On this birthday, I just want you to know how much I admire you. You are a wonderful woman and my cousin sister. Hope we’ll always be so close.”
22. “Have a great birthday celebration, dear cousin sis! We may have been born into a different family like cousins, but the truth is that we are more or like sisters.”
23. “We have grown up over the years, and times have changed too, but you were and will be my favorite cousin. Happy birthday to you.”
24. “Wishes for your birthday; Lots of beer, gifts, party people, love, smiling faces, tears of joy, and much more…Happy birthday!”
25. “I pray to the Lord that he bestows you with the abundance of all forms of love. You may never be hungry for it. Best birthday wishes for you, my cousin sister!”
26. “Thank you for being my teacher, because thanks to you I became a better person. Love you, cuz. Congratulations!”
27. “Wishing you a super fantastic birthday to my dearest cousin sister! May you receive joy beyond measure and love beyond your thought on this day.”
28. “We might be cousins, but in reality we’re much more. A sister and a best friend, I love you from the core. Happy birthday.”
29. “May stars sing for you. May the moon dance for you. May your birthday go all merry, and we all wish for you. Loveliest happy birthday wishes, cousin sister!”
30. “Each new birthday gives you one new page of your life. I wish for you to fill them with love and happiness.”
Emotional Birthday Wishes For Cousin Sister
Your cousin’s birthday is the perfect time to show her exactly how you feel. Here are some emotional birthday wishes for cousin sister to express how much you love her.
1. “I never lacked having a sister because I was always with you. With much love, happy birthday to you, dear sister.”
2. “Cousins are meant to be the best part of the family, and you are! Hope this birthday and all your next year will bring you something special because you are worth all the best in the world.”
3. “We have shared amazing moments together, and I’m sure that we will continue doing so. I’m happy that we are cousins, and today, I wish you the best. Happy birthday, cousin sister!”
4. “When I think of you, I am overwhelmed by all the love I have for you. You have been such a comfort to me throughout my life, and I wish you only the very best in everything you do.”
5. “If you’re one of the lucky few, you have two of life’s greatest gifts in abundance: family and friends. With a cousin like you, I’m the luckiest person I know. You’re family by blood and my closest friend by choice. Happy birthday, dearest cousin.”
6. “Growing old with you is like a blessing for me. I can never forget the childhood days we spent together beautifully. Thank you for being with me. Happiest birthday!”
7. “I’m so grateful that you have always been there for me when I needed you the most. Even when I didn’t want you there, you always helped me. That takes a special kind of love, and I deeply appreciate all that you do for me.”
8. “When I wander off my path in life, you always lead me back to it. Thanks for always being a teacher, a confidante, and a friend. Sisters like you are one of a kind. Happy birthday!”
9. “I’m sending the very best birthday wishes your way today, my adorable little cousin sister! May your special day be a beautiful one full of love, joy, and happiness!”
10. “You are my absolute favorite sister. True, you are my only sister, but this just means I can devote all my love to you. Happy birthday!”
11. “Sis, for all the times you defended me when we were kids and consoled me as an adult, know that I am truly thankful. I could ask for no better champion in life than you. Happy birthday!”
12. “Hey dear, I just want to thank you for being my partner and my companion in everything throughout my life. You are my partner in crime. Have an amazing birthday, my dear cousin.”
13. “My heart will always be empty because you have taken a small chunk of it with you. Happy birthday, my dear cousin sister!”
14. “You are more loved than you could possibly realize. I hope that on your special day, you receive nothing but enough love for a lifetime cousin. You can begin with mine. Happy birthday!”
15. “Congratulations, my cousin. I’m really happy about the opportunity to have such a wonderful person by my side. Just remember – I’ll always be next to you, too.”
16. “Sister, we have shared so many laughs and thoughts and also boosted each other up when we were down. I believe there are still plenty of sweet memories to come. Have a wonderful birthday.”
17. “You’re certainly the best cousin anyone could ever wish to have! You always cheer me up whenever I feel lonely, and you are always there when things are tough for me to handle. Happy birthday to you! I love you so much!”
18. “Smile, and all your wishes will come true; life and the world will be bliss. May happiness shower every day, on your birthday, I ask for all this.”
19. “May you have all the smiles and joy in your heart that can bring all the blessings in your life. May you get the world’s best in everything. Happy birthday, cousin sister!”
20. “My sweet cousin sister, I hope your birthday is as beautiful and special as you are. Thank you for being the best part of my life. I love you so much.”
21. “Happy birthday to my crazy, wonderful, hilarious, and truly amazing cousin! I feel so lucky to have been able to grow up alongside you, and I can’t wait for all the exciting adventures in our future! Love you so much!”
22. “Today is not an ordinary day. Today is the birthday celebration of a cousin with whom I shared a lot of beautiful, beautiful moments of my childhood. Happy birthday!”
23. “I can’t imagine family meetings without you, my lovely cousin sister. You always saved me from boring talks and unfunny jokes. I’m really thankful for that. Let this day be funny and full of good moments and jokes!”
24. “Growing up, we may have had our differences, but those differences are what made us the people we are today. Now, I look back at our fights with only fondness. We were so angsty back then! Happy 31st birthday, cousin!”
25. “Today is the most special day where I get to tell you how much I admire your presence in my life. You are literally a source of happiness for me. Have an amazing birthday, dear cousin!”
26. “Though we don’t share the same blood, I feel so blessed to have a cousin sister like you in my life who loves me unconditionally. May you have a fantastic birthday cousin sister!”
27. “In you, I found a true friend and a sister, and that’s why this day means so much to me too. Happy birthday, cousin! May your life be blessed with joy and success.”
28. “One of the many joys of being a single child is that I appreciate having an awesome cousin like you in my life. Happy birthday.”
29. “Sharing sincere congratulations on the birthday of the dearest cousin. You are the best gift from God that we all have.”
30. “With cousins like you, it gets so much easier to bear the troubles and also share the pleasures! Thank you for being you! Happy birthday!”
Short Birthday Wishes For Cousin Sister
If you want to keep it simple, use one of these short birthday wishes for cousin sister.
1. “It doesn’t matter if I see you once a week or a year, I still feel you are my closest friend. Wish you a fantastic birthday, sis!”
2. “May you have a phenomenal day! Happy birthday, cousin!”
3. “Happy birthday, sweet sister of mine. Have a wonderful day and make lots of memories.”
4. “You are literally the best sister ever. Happy birthday to the most awesome sister ever!”
5. “You are everything that I could have asked for in a sister and more. I don’t know which of us is luckier! Happy birthday.”
6. “Happy birthday, cousin! I am wishing you all the best in the year ahead.”
7. “May this path of your life be full of the most beautiful experiences. Sending warm wishes on your birthday.”
8. “Hey, cousin, may you have a fun-filled birthday celebration, and I wish you more birthdays to come.”
9. “I hope your life will always remain colorful, my younger cousin sister. Happy birthday!”
10. “Happy birthday to the most special person in our family! We love you so much!”
11. “Happy birthday to someone who is forever young.”
12. “May fate always be favorable to you. I wish you always to be loved and desired.”
13. “Happy birthday, my crazy, wonderful, hilarious, and truly amazing cousin.”
14. “May this day bring happiness and endless joy, and you live with peace and serenity. Happy birthday.”
15. “There is nothing greater than being blessed with such a wonderful cousin. Happy Birthday.”
16. “My dear cousin, I hope you have a wonderful birthday celebration, and I want you to know that I really love you.”
17. “I wish you the best of luck and joy on this special birthday. Have fun, dear cousin!”
18. “I feel so lucky to have such a smart, supporting, and simply amazing cousin! Happy B-day to you!”
19. “May we always remain best friends. Our relationship with all strength never ends. Craziest happy birthday wishes to you!”
20. “I’m blessed to have you in my life. Happy birthday, little sister!”
21. “Happy birthday, dear. I am very lucky to have a cousin like you who is always my support.”
22. “Loads of love & blessings on your birthday, cousin sister! Enjoy your day!”
23. “Happy birthday, dear cousin. I’m wishing you all the best today and in the year ahead.”
24. “I am wishing heartwarming birthday wishes to my adorable little cousin sister! May your birthday be as fantastic as you are.”
25. “To my sister, the one who always stuck by my side – HAPPY BIRTHDAY! You are a beautiful gift to this world and to me.”
26. “Despite being my younger cousin sister, you have become my role model! I love you! Happy birthday!”
27. “I wish my dearest cousin happiness and success. Have a nice day.”
28. “When I was little and I needed someone to talk to, you always listened. Thank you for always being my soundboard in life.”
29. “You are literally the best sister ever. Happy birthday to the most awesome sister ever!”
30. “May you have a fantastic birthday celebration, and may you continue to inspire more people.”
Happy Birthday Cousin Sister Wishes
There are tons of creative ways to wish someone a happy birthday. Take a look at these lovely birthday wishes for cousin sister to wish her a happy birthday in style.
1. “It feels awesome to have someone who I can pour my heart out to. Happy birthday to my cousin.”
2. “It’s really hard to say something new to you because you are a wonderful girl. It would be perfect for sharing this day with you, sis!”
3. “A little bird whispered in my ear, it’s your birthday today, my favorite cousin, so for you, a poem I will write on how good and smart you are. A blessing I will give to a loving and happy year.”
4. “May your every wish be filled; whatever you want in your life is always achieved. Loads of love, happy birthday cousin sister!”
5. “Your presence in my life is a source of happiness. You are my favorite cousin. But do not tell others. May all your wishes come true today.”
6. “Your being there always makes a difference. My favorite cousin, it’s your day. May you be blessed with the joys of life. I wish you a very happy birthday.”
7. “Family is connected not just by heart but by blood. Even distance and time cannot separate our bond. I love you no matter what. Happiest birthday to the most loving and caring cousin!”
8. “Happy birthday to a great woman who is both a cousin and sister to me. This is your day, so enjoy it and have fun. Remember that for me, you are a smart and beautiful woman, and I am so thankful that I got you.”
9. “Warm hugs and best wishes to my little sister, who grows wiser every day. On your special day, I hope and pray that you continue to amaze me the way you always do.”
10. “Take a moment and reflect on the wonderful life you have had. As you think of your future, count me as part of it. Happy birthday, cousin.”
11. “Happy birthday to you, my dear cousin! It’s a great day to rejoice for you now have another year to live and a bright future to anticipate.”
12. “It’s a rare gift to have a sister as phenomenal as you. You are the kind of person who envelopes people in your warmth, and I am so lucky to be your sister.”
13. “Happy birthday to my dearest sister! You are such a wonderful person and deserve so much happiness on your special day. I hope it is filled with joy and happiness!”
14. “To the good old days when we were small and used to fight, I still remember your weeping eyes (kidding). Happy birthday to my grown-up girl. Love you, cousin sister!”
15. “My lovely cousin, may all the kindness you’ve given to others be returned to you a thousandfold on this wonderful day. You must have an amazing birthday.”
16. “Having a cousin like you is a blessing. Thank you for bringing so much happiness into my life. Have a nice birthday, darling.”
17. “Happy birthday to you, my pretty little sister. You are one of the reasons I look forward to life every day. You keep me warm inside, and I cannot say thank you enough.”
18. “Time to celebrate! I need to see you happy and how you enjoy this day. There’s nothing more special than your birthday, sweetie. So, be happy, girl!”
19. “In you, I have found a friend, supporter, adviser, and cousin sister. You are my favorite relative. On this day, I wish you to calm down and enjoy your birthday cake and drinks. It’s time to feel real perfection. Happy birthday!”
20. “On this birthday, I wanted to let you know that you will forever be an irreplaceable part of my life. I hope your birthday is as phenomenal as you are, cousin.”
21. “Our dear cousin, I want you to know that I love you. I got your back, no matter what. My wish is for you to witness more birthday parties in your life as you continue to grow older and wiser. Happy birthday!”
22. “We receive hundreds of gifts in life. Some better and some worse, but I realized that a few years ago, I received a fabulous gift – a cousin that I can share good moments with. I love you, cousin. Happy birthday.”
23. “Happy birthday to my cute cousin! You are the best female cousin a woman can ask for, and I hope your day is filled with tons of laughter, birthday songs, surprising gifts, peace, love, and a lot of fun.”
24. “Growing up with a cousin like you is something I will always treasure. We were always like sisters, and I’m so happy we still are. Love and best wishes on your birthday!”
25. “I’m so grateful to have you as my cousin sister. You’ve always been there for me, and I know you always will be. Wishing you all the happiness in the world on your birthday.”
26. “I wish you a happy birthday full of rainbows and sunshine, happiness and smiles, laughter and love. This is your day to shine and enjoy every minute.”
27. “Happy birthday, sister! You truly are an inspiration for all of us back home… We miss you too much! May you have an awesome birthday!”
28. “Cousin sister, I have one thing to say – you made this world a better place to live in. And this day is a big celebration for all of us. Wish you a perfect and happy time. The sincerest greetings!”
29. “I hate that we have to spend your birthday apart, but I am thinking of you even now. Sending you love and a little bit of crazy your way just in case you missed me.”
30. “Happy birthday to the most beautiful cousin in the world whom I treat like a real sister! Thank you for everything, my dear. You certainly made my life so much happier!”
See also: 270 Sweet & Heart Touching Birthday Wishes For Sister
Sweet Happy Birthday Wishes For Cousin Sister
If your cousin sister is as sweet as candy, then you need some sweet birthday wishes for cousin sister!
I have the sweetest cousin birthday wishes right here!
1. “As your cousin, I feel very happy because I couldn’t have had a better environment to grow. Thank you for always protecting me.”
2. “A cousin is a friend related by blood, a sibling who doesn’t fight for closet space and a best friend who doesn’t charge fees, and a best friend who doesn’t reveal secrets. Have a fabulous birthday, sis.”
3. “Happy birthday to the sweetest, cutest, and funniest cousin in the whole family. You are a perfect girl, and I am really happy for you. Have a beautiful birthday. Congratulations and kisses! Be happy!”
4. “If I could have another chance to choose my sister, I would choose you every single time because I love you so much. You are special to me. Happy birthday.”
5. “We grew up together, and times have changed since we were kids. But you will always be a dear friend to me, cousin. Happy birthday!”
6. “There is no one in the world more adorable, fun-loving, and caring than you, my sis. Take my warm wishes as you add one more year to your life. Happy birthday!”
7. “I’m so fortunate to have you in my life. Your presence is a treasured gift, and I hope your birthday is half as magnificent as you are. Happy birthday, sis!”
8. “Happy Birthday to my biggest secret keeper! You know too much not to be my best friend as well!”
9. “To my dear cousin, remember that each birthday will mark the end of one year and signifies the beginning of another year. Celebrate the gift of life as well as the opportunity to be with the people you love.”
10. “Having an amazing cousin like you is literally a gift for a lifetime. Thank you for bringing so much happiness and love to my life. Happy birthday!”
11. “Today is no ordinary day. A little birdy told me you are celebrating a birthday, and I hope you have a delicious cake and you like the presents you get. Starting with my wish.”
12. “I didn’t know that one person could make such a difference in my life, and then I was blessed with a little sister. You have changed my world so drastically and bettered it in every way. Happy birthday, sister!”
13. “I used to be annoyed that you always held me to such high standards, but now I see that it’s because you knew what I was capable of. Thank you for always caring enough about me to want me to be my best. I really do appreciate it.”
14. “It is certainly a blessing to have a smart, cool, and superb cousin like you. I would like to take this opportunity to thank you for coming into your life, and may you have a birthday filled with joy, luck, and happiness!”
15. “We have shared amazing moments together, and I’m sure that we will continue doing so. You have made my life happier. I’m happy that we are cousins, and today I wish you the best. Happy birthday!”
16. “May this day and your birthday celebration be the best beginning of a new year. You were amazing all the time, so you‘re worth the best.
Best time, friends, family, and me. Send you the loveliest greetings.”
17. “My sweet, sweet cousin sister, may you be blessed today and for all your next year. Wishing you a happy birthday from all my heart. Congratulations!”
18. “I wish that your beauty enchants those around you and that your family appreciates, loves, and helps you in everything. May only good news always make you happy!”
19. “Sister, no one gets me quite like you. It’s one of the best feelings in the world to know that there is someone who understands me so completely. I hope your birthday is filled with prosperity and good fortune.”
20. “May this special day be a day to remember forever. With much love, I wish you a very happy birthday.”
21. “As you open a new folder in your life, I ask the Lord to decorate it with lots of fortunes and treasures. Happy birthday.”
22. “Here’s wishing a wonderful birthday celebration for a dear cousin! Please enjoy your special day because you truly deserve it. Happy Birthday!”
23. “We’re cousins, so that means we’re family. But even if we weren’t, I’d be so thankful to know a person as sweet and kind as you. Happy birthday!”
24. “Happy birthday to my favorite cousin! Growing up with you was wonderful! I hope we make many more memories together!”
25. “Growing older with you is like a blessing, sister. I can never forget the childhood days we spent together. Thanks for always being with me. Happy Birthday!”
26. “The only member of our family who is capable of handling my mood swings is you! Happy birthday, cousin babe! Love you!”
27. “No matter how old you get, to me, you will always be my little sister. I hope all your dreams and aspirations come true on this special day. A very happy birthday to you!”
28. “To have a family member like you is not just a wonderful addition, but a true blessing. I feel so blessed to have you as my cousin and even luckier that I am able to call you my best buddy. Have a blessed birthday and a great journey ahead!”
29. “It is no one else but cousins like you who make life so much merrier than it actually is! Thank you for being so awesome! Happy birthday!”
30. “You are my absolute favorite sister. True, you are my only sister, but this just means I can devote all my love to you. You’re welcome, and happy birthday!”
See also: 80 Best Favorite Person Quotes To Make Them Feel Special
Funny Birthday Wishes For Cousin Sister
Check out these hilarious birthday wishes for cousin sister that will make her laugh!
1. “Happy birthday to the family member I’m least ashamed to be related to. Happy birthday my dear cousin!”
2. “A person who tells me not to get drunk, yet helps me get drunk, brings me home when I’m drunk, and doesn’t tell anyone that you were drunk – my sis. Happy birthday.”
3. “Now you’ve got to start acting your age instead of your shoe size! Happy birthday to one of the best people I know.”
4. “It’s really annoying that every year you just keep getting cuter and cuter, sis. Don’t you realize you’re supposed to be getting older and not cuter? Don’t worry. As the older sibling, I will show you how it’s done. Pay attention and get it right next year, you cutie patootie!”
5. “The secret to making my real sister jealous is spending more time with a great cousin like you, best birthday!”
6. “Whenever people see us, they get confused. People call us twins. Sometimes I feel that God sent us to different families because they can’t handle us together. Happy birthday my cousin sister.”
7. “Happy birthday, little cousin! Thanks for reminding me how old I am… ugh! Now give me some of that cake so I can drown my sorrows!”
8. “I am glad you are not my real sister. Otherwise, my parents would have been more proud of you than me because you are so intelligent and beautiful. Happy birthday.”
9. “Do you know, you are the luckiest person in the world, sis? Wondering why and how? Just because you have ME. I know, I‘m cool. Wish you were the same.”
10. “Cousins are so awesome! Well, at least yours is. Happy birthday, cuz!”
11. “You are my antidote for an irritating friend, annoying boss, cheating boyfriend, and backstabbing colleagues. Happy birthday cousin sister.”
12. “I can’t believe how quickly time is flying by. It feels like just yesterday you couldn’t even dress, but now I come to you for fashion advice. It blows my mind how much we’ve changed. Happy birthday to my fashionista sister!”
13. “No matter how serious life gets, you’ve got to have that one person you can be completely stupid with. So glad I’ve got you, sis! Have a brilliant birthday!”
14. “Thanks for always making me laugh, even if it’s at myself. You always know how to push my buttons, but I don’t mind since you always know how to make me feel invincible as well.”
15. “Having a pretty cousin sister like you is a lot of responsibility. I have to convince all my guy friends to stay away from you because all of them have a crush on you. Happy birthday to my beautiful cousin.”
16. “I’m so sorry you’ve reached an age when you have to start thinking about your hair color. There are many colors and tons, but I’ll be able to help you to pick one!”
17. “People celebrate Mother’s Day and Father’s Day. But I truly believe that there should be a Cousin Sister Day! That way, we can commemorate the presence of an amazing cousin sister like you in our life. Happy birthday!”
18. “I don’t really need to wish you a “happy birthday” since I’m certain that your birthday will be a happy occasion. That’s because I’m going to be there. What could be better.”
19. “For all the years you ratted me out to my parents, I forgive you because it’s your birthday. Also, I may have ratted you out to your parents a couple of times too.”
20. “The best part of being your cousin sister is having a best friend that is almost as pretty as me. Best wishes on your birthday!”
21. “Happy birthday, sister! Thank you for always listening to all my problems and for giving me the worst pieces of advice and solutions, which I never follow!”
22. “To the cousin I am least embarrassed to be related to! Or am I? Happy birthday to the coolest cousin sister anyone could ever ask for!”
23. “No matter how serious life gets, you’ve got to have that one person you can be completely stupid with. So glad I’ve got you, cousin sis! Have a brilliant birthday!”
24. “I am convinced I have the best cousin in the world, and I hope the feeling is mutual. From one phenomenal cousin to another, I wish you a happy birthday!”
25. “I am so happy it’s your birthday, sister, because nothing makes me happier than the fact that you are getting older! I’ve got to make sure that I keep my status as the cute younger brother. Good job!”
See also: 300 Amazing Captions For Brother And Sister On Instagram
Inspirational Birthday Wishes For Cousin Sister
If you’re looking for inspirational birthday wishes for cousin sister, you gotta check out these awesome ideas!
1. “You truly are an inspiration and role model to me. Thanks for being an amazing sister and friend. I hope you have a brilliant birthday!”
2. “No matter where you go or what you do, you’ll always be my second sister – my wonderful cousin. Let this day be full of happiness, love, and lots of good pictures. Share every moment with all the world.”
3. “One day you were born, and the rest is legendary! Sorry I missed the big day, don’t worry, I’ll make the next one extra special. Happy birthday cousin!”
4. “I’m honored to have such an amazing cousin as you. All your lessons and support helped me much more than one time. Thank you for caring and being the best cousin ever! The biggest congratulations on your birthday!”
5. “Cousin sister, you truly deserve a super birthday because you are a super girl. Hope these new 365 days will bring you good luck and happiness. You are a wonderful relative.”
6. “Good morning, cousin! It’s your birthday, and I want to be the first person to wish you a happy birthday! You are my BFF and will always be. Congratulations, sweetie!”
7. “I’m glad I got you, my dear cousin sister. You are an awesome woman and my best friend. I promise you to make this birthday special.”
8. “Dear cousin, on this special day I hope you take the time to reflect on how wonderful your life has been. I hope that I can be a part of your future, too. Happy birthday!”
9. “Happy holiday, my cousin! You are lovely and let life only please you! Enchant everyone with your magnetism, enthusiasm, and flirtatious smile.”
10. “You are a shining light in my life, cousin. You always motivate and inspire me to be better than I am. Have a wonderful birthday.”
11. “To my beloved cousin, remember that each and every birthday signifies a new chapter in your life. I wish that you continue to do good things and fill this new chapter with more wisdom and great deeds.”
12. “Here’s to one more year of becoming smarter, wiser, and infinitely prettier! It’s a hard job to look that good, but you are handling it like a boss, sis. Happy birthday to my gorgeous sister!”
13. “The most heartfelt wishes to my incredible cousin sister! You mean so much to me, cutie. I wish you all the happiness in the world!”
14. “The timeline of your happiness and success will continue to remain the same until you find yourself smiling. Happy birthday.”
15. “A cousin like you is one of the best gifts I have received in my entire life. Thank you for being an inspiration. May you have a fantastic birthday celebration, and may you continue to inspire more people.”
16. “Having a good cousin is one of the best gifts you can receive in your life. Thank you for being my inspiration and my dearest cousin and friend.”
17. “Our secrets, funny moments, and pure silence are much more than our DNA or family tree. You are a wonderful friend, dear. Love you and want to see you happy. Have a beautiful b-day. Congrats!”
18. “The chocolates in the shops might be expensive, and the cards may not add value to your life, but my prayer is that you live all your dreams, cousin, as you celebrate this day.”
19. “Here’s to bigger, better, and brighter years ahead. May your every wish come true this year, and may you only experience happiness and love. Happy birthday, sister!”
20. “People have idols who are celebrities and famous personalities. But I found my idol in you. Happy birthday to the most amazing sister in the world.”
21. “No one has the power to bring a smile to my face, and it’s because of your funny face and jokes I can smile. Thank you for that. Keep shining, and have a wonderful birthday. May you always shine like a star. Love you. Happy birthday dear cousin.”
22. “Sister, you are an amazing person. You have already done so much in life and still have so much more to offer. I look forward to watching all that you accomplish. Happy birthday to my overachieving sister!”
23. “Dear cousin, I consider you as a shining light in my life. Thank you for motivating and inspiring me to become a better person. May you have a wonderful birthday!”
24. “Sis, you are a source of inspiration for many of us in our family. Thank you for being such a wonderful human being. Congratulations on your birthday.”
25. “Happy birthday to my adorable cousin. You are a one-in-a-million. I’m wishing you the most delightful birthday!”
26. “Growing older isn’t so bad when you have a loving cousin in your life. Hope you feel the same, girl. Love, happiness, and good wishes on your birthday, cousin.”
27. “You bring such glee into not just mine but our family’s lives. May your deepest wishes and dreams come true this year. Happy birthday cousin!”
28. “Take a moment and reflect on the wonderful life you have had. As you think of your future, count me as part of it. Happy birthday cousin.”
29. “‘I love you’ is such a small and simple phrase, but it carries the depth of my feelings for you. I hope you feel the sincerity in my words because I truly mean it. Happy birthday!”
30. ”We are born to be together since we are not only cousins but also friends for life. Happy birthday to you, darling.”
See also: 90 Small Circle Quotes To Share With Your Best Friends
Simple Birthday Wishes For Cousin Sister
I saved these simple and sweet birthday wishes for cousin sister for the end. Check them out!
1. “Your presence in my life is a source of joy and happiness. To my favorite cousin, may all your dreams and wishes come true.”
2. “To my favorite cousin, having you in my life is certainly a source of joy and happiness. Happy birthday and may all your wishes come true.”
3. “Happy birthday to the most amazing sister in the world. May you have a joyous celebration of this day!”
4. “Happy birthday, sister. Let the good times roll! Wish I was there to celebrate with you, cousin. Have fun and enjoy yourself today!”
5. “Dear cousin sister, sending you lots of hugs and love on your special day. May you achieve everything you want in life. I love you a lot. Happy birthday!”
6. “Time to get up, my sweet cuz sister! Today you have many things to do because it’s your birthday! There’s no time for a long sleep.”
7. “So what can I wish for such a special person in my life? I am wishing you lots of happiness, good health, and more success in your life, my dear cousin.”
8. “The best part about being your sister is getting to smother you with love. Nothing makes me happier than making you happy, and I hope your special day is filled with many, many moments of joy.”
9. “My dear cousin! I wish you happy days, sweet nights, more money, and fewer problems. Let men compete with each other to conquer your heart!”
10. “Happy birthday to a family member I’d actually choose to be around even if we weren’t related!”
11. “Dear cousin, blessed is the day that you were born. Today is definitely the best time to rejoice and celebrate, for another year is added into your life.”
12. “Regardless of us being cousins, I am happy to be your friend because you are really cool. Wishing a wonderful cousin a wonderful birthday!”
13. “Happy birthday to my best friend and sister at heart, who just so happens to also be my cousin! Have a great day, girl!”
14. “You are not just my friend, but you are a friend indeed in all my friends. I can rely on you and trust you utmost. Happy birthday to my lovely cousin sister!”
15. “Happy birthday, sister! May God keep showering his love and blessings on you, and may we get to celebrate more happy days together!”
16. “Families are filled with many magnificent wonders, but there are few things as wonderful as being blessed with a truly precious cousin. Happy birthday!”
17. “For someone who is a cousin, a dear friend, and also a sister to me, I thought I had better get you not one gift, but three! May you have the absolute best and happiest birthday possible today!”
18. “My wonderful sister, you are the only one in this entire world, and I couldn’t find another great sister like you anywhere. Happy birthday.”
19. “You are a good person, a wonderful friend, and an amazing sister. The world is a better place because you are in it. Happy birthday to my dearest sister, who always brings joy and laughter into my life.”
20. “You are such an adorable bundle of energy. I vaguely remember being that energetic, but it’s such a distant memory! Happy birthday from your older and more sluggish sibling.”
21. “Happy birthday, dear cousin! Your presence in my life is a blessing to cherish every moment. May your dreams become reality.”
22. “Meaningful silences, dark secrets, and embarrassing moments! These are some of the most valuable things that we share aside from the DNA and genes. Have a wonderful birthday to you, my dear cousin sister!”
23. “What diamonds are to women, you are to me. I feel very blessed to have a jewel like you in my life. Happy Birthday.”
24. “My dear cousin, now that it’s your birthday, I wish that you will continue to grow wiser and I would like to let you know that I am grateful for all the success you have achieved in life.”
25. “I am so thankful to have a sister like you in my life. Celebrate your birthday in a big way! You have always deserved the best.”
26. “Wishing you warm birthday wishes to the most beautiful, talented, and smartest cousin in the world. Enjoy your day to the fullest!”
27. “Life is not always what we hope it would be, but it is better to have you by my side. Thank you for all your support and love. Wish you the happiest birthday, my dear cousin!”
28. “Cousin, have the best birthday! Our family received the best gift on the day you were born. I wish you all the best things life has in store for you!”
29. “Growing up with you was the sweetest part of my entire life. Thank you, dear sister, for being such a sweet and adorable cousin. Happy birthday to you!”
30. “Happy birthday to the sweetest, most adorable cousin in the world. I hope your birthday is filled with sugar, spice, and all things nice, just like you.”
Final Words
I hope you like the happy birthday greetings I wrote for your cousin’s sister for today’s article.
Up until then!
Read next: 110 Heartwarming Happy Birthday Wishes For Cousin Brother
