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150+ Birthday Messages for Sister

Sister celebrating her Birthday? Searching for Birthday messages for your sister? You came to the perfect place! 

With over 150+ unique ideas for card quotes and messages to pick from, you are sure to impress your sister with an original and personal message to share with your wonderful sister on her big day!

If you are looking to send flowers to your sister on her Birthday, you will find plenty of impressive birthday bouquets at ByBloom.co.uk.

Birthday Messages for Sister

1. Sister, you are my everything. I am definitely one of the luckiest brothers I know! Happy Birthday.

2. My dear sister, on your special Birthday I’d like to wish you an exciting year, filled with great discoveries and fabulous surprises!

3. This year I am making a very special birthday wish to the most amazing sister and incredible friend. May you have the most amazing day & year ahead. Happy Birthday.

4. Although I never really enjoyed sharing things with you when we were growing up, I have always loved having you as my sister growing up. You are so precious to me, and I love you. Happy Birthday! 

5. I’d like to thank you, my sis, for being the most caring and loving sister in the entire world. No one understands or appreciates me more than you do. Wishing you a very Happy Birthday.

6. Sisters don’t need to be around all the time, but just knowing I have you in my life means everything to me. Have a truly Happy Birthday.

7. Cheers for taking all the good looks in the family! Oh, and Happy B’ day sis.

8. Maybe you were once a floating soul in heaven. If so, I’m so lucky that I found you, my sweet sister. Wishing you a Happy Birthday.

9. Our parents may have made us siblings, but we became friends all on our own. Happy Birthday, Sis.

10. Happy bday to the bestest sister in the whole world! You always know how to brighten my day and cheer me up, and I LOVE YOU!

11. It really is a true blessing to have such a smart, caring and funny sister like you in my life. Have an unforgettable and fabulous day, filled with everything that you love the most!

12. It’s so amazing to have such an incredible sister like you in my life. I hope you like these flowers. Congratulations of your Birthday! 

13. You are like a box chocolates: sweet, naughty and undeniably amazing.

14. My amazing sister, I’m so glad to have you in my life. You’re not just my sibling; you’re a friend who I will love for the rest of my life. Happy Birthday!

15. The most heartfelt wishes to my wonderful sister! You mean so much to me sis. I wish you all the wonderment and happiness in the world!

16. If I could have another chance to pick my sister, I would select you every single time because I adore you so much. Happy BDay! 

17. Best wishes for a year filled with great opportunities and happiness. Have a perfect day today! 

18. Happy Birthday, sister. You are the gem in our family, and obviously, the packaging is beautiful too. Keep sharing the joy inside you with us.

19. You may have always been my partner in crime, but you are going to have to do getting older all by yourself. Sorry, not sorry. Happy Birthday.

20. Thanks, my darling sister, for being the best sister I have ever met. Have a Happy Birthday.

21. Let’s celebrate your Birthday this year by promising that we will always remain by each others side no matter what may happen in life. Happy Birthday, Sister.

22. Happy Birthday to my darling sister! Wishing you an ocean filled with fun and happiness. Big love! 

23. To the best, most loving and most wonderful sister in the world on this special occasion. Happy Birthday.

24. Happy, Happy, Happy Birthday, my wonderful sister. I believe this year of your life will be the best one yet. Happy Birthday, I love you.

25. Nobody can give a hug quite like you, sister. Thanks for all of the cuddles. I hope I can give you one for your Birthday instead of a present.

26. Happy B’Day to the most fabulous girl I know. You will always be a stunner. Hope you like the flowers! 

27. If BFF means Best Friends Forever, do you know what SBFD means? It means Sister & Best Friend in Disguise. Happy Birthday you wonderful human you. #SBFD.

28. Thanks for being the perfect travelling companion on the voyage of the SISTERSHIP. I always feel out of this world when we are together. Happy Birthday.

29. My sister shares your Birthday, and you share hers too; that makes us more than sisters, it makes us twins!! Happy Birthday.

30. I am so glad to have a sister like you in my life. I can’t wait to celebrate your Birthday in a big way tonight! You totally deserve only the best. Big love and lots of hugs! 

31. Sending you the most heartfelt birthday greetings to the person in my life who makes everything more special! 

32. You are my best friend and the best sister that I’ve ever had! Even the ones in my imagination aren’t as nice. Happy Birthday.

33. Sisters are more precious than any piece of valuable jewellery. You are my best friend forever. Happy Birthday.

34. Warmest wishes to my wonderful sister. You make life so much more colourful and exciting just by being in it.  

35. Sisters may be God’s way of reassuring mankind that pain truly does exist, but every now and again, you’re actually quite nice. Happy Birthday, sis, I hope you have a good day.

36. A sister is like a radiant flower picked in the garden – beautiful in every way. Happy Birthday.

37. Today, on this day, your Birthday, I want to make you smile the just like I do every day just from knowing that you’re in my life. Wishing a very Happy Birthday.

38. You are my fabulous, wonderful sister. I hope you love your birthday bouquet. Happy Birthday, sister.

39. Sis, our beloved parents, may have made us siblings but we made two best friends. Happy Birthday my favourite human.

40. I am so thankful to be blessed with a sister like you. Celebrate your Birthday like no one is watching! You totally deserve the best, sister.

41. Your words can bring a smile to my face, keep me laughing and make my day. Happy Birthday

42. All the wealth in the world couldn’t compensate for the love I have you for sister. I do not want to miss any opportunity to wish you a happy birthday and can’t wait to celebrate with you very soon. In the meantime, I hope you love the fresh flower bouquet.

43. Sisters always help you understand the world better and also appreciate it more than anyone else does. Happy Birthday.

44. Happy B’Day! I apologise in advance for the Christmas wrapping paper! Sorry, not sorry, sis.

45. I may not be able to talk to you every day, but you are always in my heart. Happy Birthday, my lovely sister.

46. We have shared so many incredible and magical moments together in our life. We have laughed, we have cried, but together, we have made smiles out of frowns. Wishing you a truly Happy Birthday.

47. Just for today, you can take any of the clothes that you want from my wardrobe. I want them back tomorrow though! Happy Birthday, sister!

48. Happy Birthday, sister. Can you remember how we used to smile in the old days? You still have the same smile, and that’s why I love you, sis.

49. A birthday cake is always delicious, but to me, a sister with a birthday cake is even better. That way I will only get half as fat. Happy Birthday, Sister.

50. Wardrobes don’t get any trendier, breakups don’t get any easier, school doesn’t get any nicer, and life doesn’t get any better – having you in my life though makes it all worth living. You’re an amazing sister. Happy Birthday, sis.

51. Thanks for being such an amazing and supportive sister and thanks for understanding all my quirks. Happy Birthday.

52. Sister, you’re the first best friend of my life, and you’ll remain my BFF forever. Wishing you a very Happy Birthday.

53. Thank you so much for being my greatest inspiration and my best friend in life, Happy B’Day darling sis.

54. I hope you know how much I adore you, my sis. Happy, Happy Birthday.

55. Though the sun will one day run out of energy, my love for you will never, ever fail. It will survive to the last day on this universe. Happy Birthday.

56. I know you have been through many hard times over the years, but you never gave up. You are the strongest woman in the whole wide world and more importantly, my idol. You have such a positive outlook on life. Wishing you a Happy Birthday.

57. A single compliment is not enough. Lots of compliments are still not enough. You are truly awesome; my loving sister. Happy Birthday.

58. I never dreamt of being an only child because I always wanted you to be my sis. Happy Birthday.

59. Sometimes maybe you fight with your sisters, but you always finish by being my best friend. Happy Birthday.

60. Sisters like you are like precious diamonds. They are priceless, they sparkle, and they are truly a girl’s best friend. Happy Birthday, sis.

61. Wishing a Happy Birthday to my super amazing sister. I hope that this year all your hopes and dreams come true.

62. Sister, by now you’ve already done the hard part…you survived growing old. Now let me handle the best bit of being old already and plan you an unforgettable party. Happy Birthday!

63. There’s no complaining about getting older…until you find your first grey hair! Here’s to another wonderful year having you in my life.

64. I may not be able to talk to you every day, but you are always in my heart every moment of every day. Happy Birthday, darling Sister.

65. When I glance at you, I feel like I am staring at myself in the mirror. When I see myself in the mirror, I see you. Happy Birthday to my favourite twin sister! 

66. Raising a glass today to toast the Birthday of my beautiful sis; you are truly one of a kind.

67. Sisters always know how to care for someone better than anyone else. Today, it’s my turn to have your back. Happy Birthday, sis

68. Have a wonderful Happy Birthday. You are so incredibly special to me; I wish that every single day is filled with goodness for you.  

69. Wishing you a Happy Birthday to my delightful, incredibly charming and exceptionally talented sister.

70. Sister, you are my everything. I simply couldn’t ask for more. I consider myself one of the luckiest to have found you and to have you in my life. Happy Birthday, sister.

71. Sisters are very similar to best friends. Often you don’t know that they are keeping an eye on you, but they are always there. Happy Birthday.

72. Sister, I’m truly thankful to you for being an outstanding friend of mine. I wish you a very Happy Birthday.

73. Wishing my amazing sister and best friend a big Happy Birthday. This special day comes once a year and is all about you!!! 

74. A true sister is the embodiment of care and love. I know this is true because I’m the brother that’s lucky enough to have you by my side. Have the best Birthday, little sister!

75. How incomplete would one look if you only had one earing in but not the other? This is how I would look without you. Happy Birthday.

76. I like you so much that I took out the attractive photo that came with my wallet and put a picture of you in it instead. Happy Birthday.

77. Thanks for understanding me; I cannot imagine my life without you in it. You always know exactly what to do or what to say. Happy Birthday.

78. On your Birthday, I am sending you my love, best wishes, and heartfelt greetings. Hope you have a fabulous birthday!

79. I feel so fortunate that my dear sister is also my true friend. Happy Birthday, you are the best!

80. You are totally amazing; you are the strongest and kindest person I’ve ever been lucky enough to meet. I’m so proud to call you, my sister. Happy Birthday.

81. Sister, today is a truly special day in your life. Let’s cut the cake and magnify the happiness. The flower subscription I arranged will brighten your home every week for a year. I love you. Happy Birthday.

82. Neither of us are perfect; our imperfections make us the people we are. Happy Birthday.

83. There may be thousands of sisters in this world, but to me, you are the best one. Without a doubt, you are a sister like no other. Happy Birthday!

84. Sis, you have always been there to support me. On your Birthday, I just wanted to write a little note to say a huge thank you. I love you, and anything you want to achieve in life is possible. I will give you anything I can – it starts with a flower subscription from ByBloom.co.uk. You will receive flowers every week for a year. Happy Birthday!

85. Sisters not only share accessories and dresses, but they also share a life together. Happy Birthday!

86. Some say wishes are destined for the stars, but I don’t need the stars when I already have you in my life. Happy Birthday, sister.

87. You are the reason my childhood days were so wonderful, and I had so much fun. Thank you for all the incredible memories we have together. Happy Birthday, sis.

88. I wish you a life filled with wonder, prosperity, and joy. Happy Birthday my lovely sis.  

89. Thanks for being a fab sister and for understanding me, although I have never quite understood you. Happy Birthday.

90. I love how different we are. You will always be my sister. Happy Birthday! 

91. Happy Birthday, gorgeous! I am grateful for all the magical time that are able to spend together, sis. Be safe & happy!

92. When we were growing up, no one drove me crazier than you. Now, you’re the person I call when other people around me are driving me crazy. Happy Birthday, sister!

93. I want to wish a fabulous Happy Birthday to the most happening and trendy sister in London.

94. Though even the sun may one day run out of energy, my love for you never will. Happy Birthday.

95. Pharmacists should take your DNA and bottle it. Call it Emotional Healer as that’s what you are to me every day. Happy Birthday, sis.

96. Sis, I have always valued your advice and applied it in my life. You’ve helped me to become responsible for both my life and my family. Happy Birthday.

97. You are another year wiser and about two minutes away from grabbing a cocktail.

98. There are so many fabulous memories of our old days that can easily make remarkable stories. I can remember them all because I cherish them always. Have a Happy Birthday, my lovely sister.

99. You are the one who has taught me what true love means. Happy Birthday my fabulous, astonishing, sister!

100. It is clear that you cannot stop having your Birthday, and more precisely, you can’t stop being my amazing sister. Both of these things are really great. Wishing you a Happy Birthday.

101. I may not be able to talk to you every day, but you are always in my heart. Happy Birthday, Sister.

102. I’m going to stop sending you makeup; it’s time to accept you you are beautiful, wrinkles and all! Happy Birthday, Sister!

103. Greetings from your biggest fan on today, your day of birth. Happy Birthday. You will always be my #1.

104. Confession time…I steal and borrow things from you all year round. So given today is your Birthday, it would seem like a great time to give you a gift for a change and return the favour. Happy Birthday my dear sister.

105. People say that it’s possible to choose your friends but not your family. I am definitely the luckiest of all; you are both my sister and my friend. Happy Birthday.

106. Your friends may come and go, but sisters will always be sisters forever. Happy Birthday my favourite woman in the world.

107. When you were brought home thirty years ago, I was a little jealous. But as we grew up, I found that I had the most amazing friend. Happy Birthday!

108. I wonder what other people do without a sister like you. I need and love having you in my life. Thank you for always being you. Happy Birthday lovely! 

109. I feel so privileged to have such an awesome person like you as my sister. I am sending lots of hugs and kisses to my darling sister on your Birthday!

110. You are the best sister that I could have ever asked for. Even in my imagination, you are so much better than anything I can picture. Happy Birthday.

111. Big love today to the only girl in the world that I like to dress in princess clothing with!.

112. Sisters share way too many emotions together – laughter, joy, happiness, jealously, dreams, anger and togetherness. All these qualities make them the most genuine friends of all.

113. You are the only person in the whole world that can turn my tears into a massive smile. All I quickly want to say is that I adore you, my darling sister. Wishing a very Happy Birthday.

114. A loving sister like you brings me all the reassurance that I am never alone in this world because you are always right beside me. Happy Birthday.

115. Wishing you a Happy Birthday, my amazing sister. I wish to thank you for being my very best friend always, in all ways.

116. On today, this special day that celebrates your birth, I’m reflecting back on all the wonderful memories we’ve shared together. Happy Birthday, Sis!

117. Sisters are not ordinary humans. You have the patience of a saint and are more beautiful than a beauty pageant winner.

118. Friends may come and go, but sisters live forever. Happy Birthday.

119. Hurray! It’s my favourite sister’s Birthday! I hope your Birthday this year brings as much happiness and joy to you as you bring to others!

120. Why do you worry about getting older? When you are like a fine wine, you just continue to get better and better with age.  

 Heartfelt Birthday wishes to my dear sister!

121. I am so lucky to have such an intimate relationship with my beautiful, caring, loving and generally wonderful sister. Happy Birthday.

122. We may have been sisters by fate and biology, but there is no one else who I could love more by choice. Happy Birthday.

123. If superheroes are one in a million, a sister like you comes once in a lifetime. Happy Birthday!

124. The definition of a sister: an amazing person who knows you inside and out. Yup, this sounds like you. I’m so grateful to have you as my sis. Happy Birthday.

125. Sending you this little note to say I am always so insanely proud of you. I love you.  

126. I am so happy to have a sister like you in my life. Wishing you a fabulous day filled with joy and happiness!

127. The Forbes Billionaire List has got it wrong. I am the richest person on the planet because no one else has the love of a wonderful and beautiful sister like you. Happy Birthday.

128. The ways in which you touch my soul can only be achieved by a sister like you. I wish you the Happiest Birthday!

129. Sometimes you fight sisters, but you always make up afterwards. Sisters are for keepers. Happy Birthday.

130. Whether you’re my older sister, my best friend, my teacher or my therapist, you’ll always have a loving fan. 

131. It’s true…that a special birthday gift is super hard to find, but it is almost impossible to find a special sister like you. Happy Birthday.

132. You can’t stop having birthdays, and you can’t stop being my sister. And those are both good things. Happy Birthday.

133. I hope that today will bring you utter happiness and joy. I will never leave your life so buckle up sister and get ready for more cocktails! 

134. There are so many essential things that I’ve learnt from you. How to do laundry and clear up sick after too many cocktails is one of them. Happy Birthday, sister.

135. My childhood would have been imperfect and dare I say, incomplete without a sister as special as you. Happy Birthday.

136. You cannot compare sisterhood to anything else in the world – the millions of memories that we have together are priceless. Happy Birthday.

137. Happy Birthday to my big sister and congratulations on becoming the most desirable cougar I know! 

138. Friends may come, and friends may go, but a sister like you comes along once in a lifetime. Happy Birthday.

139. There is a place that gives me strength, inspiration and support. It is my sister’s heart. Happy Birthday, sis!

140. Your Birthday is more precious and special to me than you can ever know because on this day; I got the most important gift of my life. Happy Birthday.

141. You are everything that I could have ever asked for in a sister and so much more. Happy Birthday.

142. Sisters like you are like precious diamonds: Only the fortunate have them. Wishing you the happiest and most prosperous Birthday.

143. My crazy, loving, super fun sister, life without you would have been unthinkable. Happy Birthday.

144. I’m so glad to have a brilliant sister like you, though I’m not counting – you continue to keep getting better. Happy Birthday.

145. Sending this little love note to wish my beautiful sister, a very Happy Birthday from across the pond.

146. To have a sister like you is like to find a treasure chest. Celebrate your Birthday in style; you deserve only the best!

147. Happy Birthday to the most stylish and trendy sister in the whole wide world.

148. I cannot count the feelings I have for you, but if I had to pick only one, it would be the love that we always share. Happy Birthday and have a fabulous year ahead!

149. To my incredible sister, the one who has always stuck by my side – HAPPY BIRTHDAY! You are a gift to the world and also to me. I love you.

150. When life gets me down, all I have do is imagine your sweet smile, and as if by magic, I can stand again. You are the star of my life. Happy Birthday, dearest sister.

151. Happy Birthday to my favourite sister ever! Thank goodness you get less annoying as you get older. Haha! Just kidding! You’re the best, and I love you! 

152. On your special day today, I wish you only joy and celebrations. May each moment of your life be filled with joy and happiness. May this Birthday be perfect for you!

153. My wonderful sister, you really are the only one in this whole world who I truly love. Happy Birthday.

154. Even when no one else shows care or concern, a sister is someone who will always be there. Happy Birthday.

155. Sister, over the years, we have shared so many laughs and thoughts and also boosted each other when we were feeling down. I believe still there are plenty of loving memories to come. Have a fabulous birthday.

156. Thanks to my sister for always being around me. Let me hug you once on this special day that celebrates your birth. Happy Birthday.

157. Happy Birthday, sister. You are so incredibly special to me, not only for being my sister but also for being my best friend. Without you, I never would have made it this far in life.  

158. Dear sister, I wish you the very best on your Big Day, the day of your birth. I hope this year is filled with utter joy, prosperity and love.   

159. In the kaleidoscope, that is my life; you form the most beautiful patterns. You are truly one in a million. Happy Birthday, sis.

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