If you have a younger or older sister, you always want to send your best birthday wishes to your sister!
Sisters have a bond that's unbreakable, no matter how much you might fight or argue, they will always be your best friend, and you can always count on them for a good laugh.
If you're wondering what birthday messages you should give your sister or say to her, let her know how important she is to you and how much you value and appreciate everything about her.
A unique way to wish your sister a happy birthday is by writing words from your heart about how much she means to you. Or you could tell a funny birthday story to bring back some nostalgic childhood memories.
Let her know how she has helped and inspired you in life and how much that means to you.
If you're wondering about some ideas for birthday wishes sister, we got you!
1. “Over the years we may have had disagreements and petty fights, but that’s just what sisters do. We’ve also had deep discussions and loving moments. I’m glad I have such a wonderful sister who keeps my life real and never boring. Happy Birthday, sis!"
2. "Sister, you are my everything and even more. I feel that I’m definitely one of the luckiest! Happy Birthday."
3. “My dear sister, I hope you have a wonderful birthday, and that the year ahead is full of joy, excitement, and adventure!”
4. "I’m making a very special birthday wish to the most amazing friend and an incredible wonderful sister. Happy Birthday."
5. "Sister, we shared so many laughs and thoughts and also boosted each other up when we were down. I believe still there are plenty of sweet memories to come. Have a wonderful birthday.”
6. "I want to thank you, my sis, for being the most loving and caring sister in this entire world. No one understands me better than you. Wish you a Happy Birthday."
7. “Happy birthday! My childhood would have been so boring without you to share it with. Thanks for all the awesome adventures we’ve been on, and I can’t wait for the many more fun times to come...starting with celebrating your birthday!”
8. "Our parents made us siblings, we became friends on our own. Happy Birthday, Sis."
9. “We have shared so many magical moments of our life. We laughed and cried together and made smiles out of frowns. Wishing you a happy birthday.”
10. “Sister, no other person could ever hold a candle to you, because you are too hot to handle! Happy birthday to my older and lovely sister.”
Photo: Nadya Dobrynina / Shutterstock
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11. "Happy bday to the coolest sister ever! You always know how to cheer me up and make my day brighter, love you!"
12. “You are one seriously resourceful woman, sis. I know this because I remember all those times you managed to finagle yourself out of trouble when we were kids. I also know this quality will take you far in life. Happy birthday, sister!"
13. "It is a true blessing to have such a fun, smart and caring sister like you. Have a joyful and unforgettable day, full of everything that you love most!"
14. “I’m so thankful to have a sister like you to share life’s ups and downs with. Thanks for always being there for me and making each day so much fun! I hope you have a very happy birthday!”
15. "My loving sister, I’m so glad to have you and you’re such a friend whom I’ll be loving throughout my entire life! Happy Birthday!"
16. “I know you have been through so many hard times, but you never gave up. You are my idol and the strongest woman in this entire world. You have such a positive approach to life. Wishing you a happy birthday.”
17. "If I could have another chance to choose my sister, I would choose you every single time because I love you so much. Happy Birthday, sis."
18. "You are the reason for whom my childhood days were so colorful. Thank you for all those wonderful memories. Happy birthday, sis.”
19. "Happy Birthday, sister. You are the real gift for all of us and obviously, the packaging is stunning too. Keep sharing the stuff inside you with us always."
20. “A birthday kiss for my amazing sister! I’m sure you’ll find fun and adventure on your big day, just as you do every day!”
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21. "My crazy, loving, caring, and fun sister, life without you would have been a nasty twister. Happy birthday.”
22. "You have always been my partner in crime, but you are going to have to do this getting older thing all by yourself. Happy Birthday."
23. "Wishing the happiest birthday to the world’s coolest sister. Thanks for always letting me tag along, and being there when I need you.”
24. "Let us celebrate your birthday by promising that we will always remain at each other's side no matter what happens. Happy Birthday, Sister."
25. “I can’t imagine being on this journey through life without a sister as cool as you. Thank you for everything. Happy birthday!”
26. "To the best, most wonderful, most loving sister in the world on her birthday and every day. Happy Birthday."
27. “Happy birthday to my awesome sister! I’m so proud of all you’ve accomplished. Thank you for being such a great example.”
28. "Nobody can give a hug quite like a sister. Thanks for all of the hugs. I hope that I can give you one for your birthday."
29. “Happy birthday, sister! Growing up with you has been the biggest adventure of my life. I love you so much.”
30. “Sis, you always know how to make me feel good about myself. It comforts me to know that there is someone crazier than me out there in the world! Just kidding, we’re probably equally crazy. Happy birthday sis, from one looney to another!”
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31. “Sisters are very similar to best friends. You never know that they are keeping a close and caring eye on you so that nothing can bother your happiness. Happy birthday.”
32. "BFF means Best Friends Forever but do you know what SBFD means? It means Sister but Best Friend in Disguise. Happy birthday, #SBFD."
33. “There might be countless people in this world, but to me, you are the best of the best. Happy birthday!”
34. "Thanks for being the perfect companion on the rides of SISTERSHIP. I always felt out of this globe when we were together. Happy Birthday."
35. “Sister, no other person could ever hold a candle to you, because you are too hot to handle! Happy birthday to my older, lovely, and feisty sister.”
36. "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."
37. “It’s not what we have in life but who we have in our life that matters. Happiest birthday to my partner-in-crime sister. I love you!”
38. "Sisters are precious than any other valuable things. I know you are my best friend and guide forever. Happy Birthday."
39. "You know who is my best friend in the world? It’s you, sis. Happy birthday!”
40. "Here's to a wonderful birthday and an amazing year ahead, I hope all your dreams come true! Happy Birthday, sister!"
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41. “Happy Birthday to a woman who means so much to me and sets a perfect example of how to live a happy life. I know you and I know you deserve the best on this day!”
42. “The definition of a sister: a person who knows you inside and out. Yes, it sounds like you. I’m grateful that you are my sis. Happy birthday.”
43. "Sisters are God’s way of reassuring mankind that pain exists, but so do healers. Happy birthday to one such sis."
44. “Thank you for all the years of friendship, sis. You are my best friend, and your loyalty is always appreciated. May your birthday be filled with wonderful surprises and amazing gifts.”
45. "A sister is like a different flower from the same garden – that’s why the sun was shining so tenderly on your side. Happy Birthday."
46. "We are sisters by chance but friends by choice. Happy birthday, love!"
47. "Today, on your birthday, I want to make you smile the way you’ve always made me smile. Wishing you a very Happy Birthday."
48. “Growing up, no one drove me crazier than you. Now, you’re the person I talk to when other people are driving me crazy (even you!). Happy birthday, sister!”
49. "I’m so thankful because I was blessed with a sister like you. Celebrate your birthday with maximum happiness! You always deserve the best, sister."
50. "Dear sister, your birthday has come knocking on the door once again. And my God, we will celebrate it like there are no more days to live. Let’s make the best of it."
Photo: littleWhale / Shutterstock
51. “Sisters like you are diamonds. They sparkle, they are priceless, and they are truly a woman’s best friend. Happy birthday, sis.”
52. "Your simple words can bring a smile to my face, can keep me laughing always. Happy Birthday."
53. “I learned a lot of things by having you as my sister: how to sneak out, how to talk to boys, how to sass our parents, how to put on makeup, and how to cut my own bangs (that one is key). The most important thing you’ve taught me by far is how to love unconditionally. Happy birthday!”
54. "All the wealth of the world isn’t enough to compensate for the love of a sister. So, I do not want to miss the opportunity to wish you a happy birthday."
55. “Happy birthday, sister. You are so special in my life, not only for being my family but also for being one of my best friends. Without you, I would have not made this far.”
56. "Sisters always help you in understanding the world better and also appreciate it more than anyone else. Happy Birthday."
57. “From sharing clothes to combs, shoes to slippers, notebooks to pens, gossips to problems I never realized...when did we grow up? Happy birthday, my sissy!”
58. "Though I don’t talk to you every day you always remain the deepest core of my heart. Happy Birthday, Sister."
59. “Thank you for always encouraging me to go after my dreams. I hope this year every wish of yours comes true because you deserve so much happiness in life. Happy birthday!”
60. “My childhood memories are full of laughter and fun because of you, my dear big sister! I can’t believe we’re getting older and those times seem like forever ago. Here’s to your bright future—may it sparkle with joy and delight!”
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61. “Hooray, it’s your birthday! Probably the only thing that we didn’t have to share as kids! Today it’s all about you—have fun and enjoy your special day!”
62. "We have shared so many magical moments of our life. We laughed and cried together and made smiles out of frowns. Wishing you a Happy Birthday."
63. “Having a sister like you is like having a third parent. Thank you for helping to take care of me even when nobody asked you to. Happy birthday!”
64. "Happy Birthday, sister. Can you remember that how we used to smile in our old days? You still have that pleasant style of smiling and that’s why I love you, sis."
65. “No one can heal my pains and make me happy with a hug like you. Thanks to my sister for being around me always. Let me hug you for once on this special day of your life. Happy birthday.”
66. "Though even the sun will one day run out of energy, my love for you will never fail. It will survive to the last day of the universe. Happy Birthday."
67. “When you need someone to be there for the most important parts of your life just call me, and I will come running. Good or bad it doesn’t matter because there is no moment I will not be there for you. Happy Birthday, sis."
68. "I know you have been through so many hard times, but you never gave up. You are my idol and the strongest woman in this entire world. You have such a positive approach. Wishing you a Happy Birthday."
69. “Happy birthday, sis! I want you to know that no matter what happens in life, I’m always there for you. That is what big sisters are for! But I truly hope that your life is mostly full of fun, laughter, and good times!”
70. "Wishing Happy Birthday to my amazing sister. I hope all your dreams will come true!"
Photo: Ruth Black / Shutterstock
71. "If I use a single compliment for you that would be very little and if I use all the compliments for you then still that will not be enough to describe you, my loving sister. Happy Birthday."
72. “Your friends may come and go, but sisters will always be there for you—whether you like it or not! Happy birthday.”
73. "When I look at you, I feel like I am looking at myself in the mirror. When I look at myself in the mirror, I see you. Happy birthday, sis."
74. "I know that no matter what, you will always be a part of my life, and I’m so thankful that I have such a genuine sister. Happy Birthday."
75. "Sisters always know better how to care. Today, it’s my turn to give you back. Happy Birthday, sis."
76. “There is a place that gives me strength, support, and inspiration. It is my sister’s heart. Happy birthday to my wonderful sis!”
77. "Have a wonderful Happy Birthday. You are so special to me that I wish that your every single day becomes special like today."
78. “I hope your birthday is as meaningful to you as you are to me. You are such an important part of my life, and I want you to know that I truly treasure you. Happy birthday!”
79. “Even when no one else shows concern or care, a sister is someone who’ll always be there. Happy birthday.”
80. “Growing up I always looked up to you, and as we grow older, I still do. Thanks for showing me how it’s done with style. Happy birthday, big sis!"
Photo: Ruth Black / Shutterstock
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81. "Wishing Happy Birthday to my delightful, incredibly charming, and exceptionally talented sister."
82. "Sister, I believe that you are my everything and that I couldn’t ask more. I consider myself the luckiest to find you as my sis. Happy Birthday."
83. “A sister is someone who always understands you, cares for you, and loves you. You are an exceptional one, and I hope you have the best birthday!”
84. "Sisters are very similar to the best friends. Often you never know that they are keeping a close and caring eye on you so that nothing can bother your happiness. Happy Birthday."
85. “Sisters are one of life’s greatest gifts. They are shopping buddies, gal pals, confidantes, therapists, mothers, yoga partners, and manicurists all rolled into one. Happy birthday to my sister who plays so many roles in life.”
86. "A true sister is the very embodiment of love and care. I know this is true because I’m lucky enough to be your sister. Have a wonderful birthday!"
87. “Cheers to my dear sister on your birthday! I’ll be raising a glass in your honor...or maybe three or four! I really wish we could be together to celebrate! Miss you!”
88. "I have always loved you and will continue to do so. On your birthday I send you my best wishes, love, and greetings. Hope you have a fabulous birthday!"
89. "Sis, you always know how to make me feel good about myself. It comforts me to know that there is someone crazier than me out there in the world! Just kidding, we’re probably equally crazy. Happy birthday sister, from one looney to another!”
90. “Birthdays are always special to me because it’s the only thing that we didn’t have to share as kids! Enjoy your birthday. It’s all about you!”
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91. "Some say that wishes are for the stars, but I can wish you too because I know you’ve already become a star in my life. Happy Birthday, sister."
92. "There are so many sweet memories of our old days that can easily make large stories. I can remember all of them because I cherish them forever. Have a Happy Birthday, sister."
93. “Sister, you are such a star. Star is the nicest way I could think of to phrase bossy diva, so you’re welcome! Just kidding. May your special day be brilliant, shiny, and luminous.”
94. "It is obvious that you cannot stop having your birthdays and more precisely you can’t stop being my lovely sister. Both these things are really good. Wishing you a Happy Birthday."
95. “Birthdays are always special to me because it’s the only thing that we didn’t have to share as kids! Enjoy your birthday. It’s all about you!”
96. "People say that it is possible to choose your own friends from many, but it is obvious that you can’t choose you’re the members of your family. I’m without a doubt the luckiest. Happy Birthday."
97. "I wonder that if everyone in this world could have a great sister like you think it would have been the greatest thing ever happened! Happy Birthday."
98. "A sister’s definition: a person who knows you inside and out. Yes, it sounds like you. I’m grateful that you are my sis. Happy Birthday."
99. “There are some people in life that just drive you crazy. Yet you still find that you love them. We call them sisters. Happy birthday!”
100. “Sis, I know I said I would always do everything with you in life, but you’re going to have to do this “growing older” thing all by your lonesome. Happy birthday from your eternally younger sister!"
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Megan Hatch is a writer at YourTango who covers news & entertainment, love & relationships, and internet culture. Follow her on Twitter and Instagram.