45th Birthday Wishes For Sister: Wish your very special sister a hearty and cheerful “Happy 45th Birthday” with these beautiful birthday wishes for sister! What woman does not deserve to be celebrated on her 45th birthday, right?

You are here because you want to make the moment truly unforgettable for your dear sister. Do not worry; you have come to the right place. Here you will find just what you need to make the day memorable and the celebration full of love. Just choose one of the beautiful birthday messages for sister below…

Happy 45th Birthday Wishes For Sister

1. May all your dreams, hopes, and wishes come true on this 45th birthday, big sis! Here’s too many more. Wishing you good health, happiness and much love! You deserve it.
2. I know that it’s your 45th birthday, but I still think of you as my annoying little sister. Your laugh and smile always bring me back to our childhood. It’s amazing how much time has passed and yet we are still connected as if we had just spoken yesterday. You’re my best friend in the entire world so I can’t imagine what life would be like without you. I hope your birthday is amazing, full of love and joy.
3. It’s hard to believe that you are now 45. You are still as beautiful today as you were the day I was born, and each time I see you, I see a wonderful person that is so caring and selfless. There is no one in this world that I love more than you. Happy 45th birthday.
4. Sis, it is so crazy to think it has been 45 years since you were born! We were so little and you took care of me so much. Always making me laugh, always sticking up for me. You will always be my big sister in my eyes. Happy 45th Birthday!! I love you!!
5. Happy 45th birthday.  You are the greatest sister! I can’t wait to spend this special day with you. We sure have grown up over the past 45 years. I love you lots and can’t wait to see what the next 45 years will be like.
6. Dear Sis, you are my sister, but more than that, you are my best friend. I am so excited to have another year with you, and wish and hope that time flies by. I love you so much, and I’ve always wanted to tell you that! Hope you have the best birthday ever! Happy 45th birthday.
7. My best friend, my sister. My life wouldn’t be the same without you and I couldn’t ask for anyone else to join me in this crazy world. You are the coolest! Happy 45th birthday!
8. Happy 45th birthday sis. We have reached the big 4-5! How time flies when you are having fun. I am so grateful for all the memories throughout the years and for our love that has continued to grow. You mean everything to me and I wish you all the happiness and joy that life has to offer.
9. Happy 45th birthday, Sis! You are an amazing person who has constantly made me feel welcome. I am so lucky to have you as a sister. Have a wonderful day and enjoy your special moment.
10. Happy 45th Birthday Sis! I could have picked no one better to be my sister. You are the best!
11. Happy Birthday to my sister dear. I hope you had a wonderful day full of fun and laughter. You are one of the most wonderful people in my life and I just wanted to let you know how much I love you, care about you and think of you daily.
12. Happy 45th Birthday Sis! Most of your life I’ve seen you so busy doing everything you could to help those around you, it’s only until now that I realized through all the work and love that went into helping others, you helped me in ways you didn’t even realize. You showed me what it means to be a kind and loving person. It is because of you I am proud to be your sister. I hope you have the greatest birthday celebration surrounded by those that love you most!
13. I will never forget the day we met. You have been my sister, my best friend and the one I go to when life is hard. You are more than a sister, a protector, a caregiver and so much more. I love you with every inch of my being. I am so glad we found each other. Happy 45th Birthday Sis!
14. You always find a way to make me laugh. Funny stories, preposterous jokes, and corny one-liners always put a smile on my face. I count on you to keep me going when I need it most. Always have been, always will be. Little sisters, big sisters, they don’t come any better than you! Happy 45th Birthday!
15. Happy 45th Birthday Sis! I always thought I would share my second half with someone special. But the more time we spend together, the larger I realize it is. You are right there with me in the good times and the bad but somehow your positive spirit brings out the best in me and pulls me through like no one else can. Thank you for being my sister, best friend and so much more! May you have many more wonderful years ahead!
16. Sis, I just want to say you deserve so much more than a sentimental letter on your 45th birthday. You’re such an awesome sister and I can’t even begin to tell you how special you are to me. Love you, sis!
17. You are amazing and have been an inspiration to me. My memories of you are vivid. We were so close growing up. You meant the world to me. I know that no matter how far we get from each other the love will still be there. Happy 45th, I love you and hope you continue to do better!
18. Hope you have a wonderful day and all your dreams come true. I couldn’t ask for a better sister. I hope all the joy and happiness you have given me comes back tenfold. I am looking forward to another 45 years of memories with you!
19. Sister, you have always been there for me when I needed you, from the times when I was upset to when I was happy. I love our little chats and reminiscing old times. At the risk of sounding like a cliché, you are my best friend and no matter what happens through life I want to be by your side. Happy 45th birthday and wishing you everything life has to offer!
20. Happy 45th Birthday Sis! My dearest sister, I wanted to wish you the happiest of birthdays, and also say how much I love and appreciate you. You are one of the most giving, caring people I know and I am so blessed to have you as a sister. You have brought me so much joy and laughter throughout my life, and I will never forget the unconditional love you give freely – without expecting anything in return. My favourite memory is from one birthday when we were children. I had decided to surprise you today on your 45th Birthday.
21. Happy 45th Birthday to my dearest sister, I love you from the day you were born. You’ve always been there for me when I need a friend. You are the most beautiful person I know and your selflessness amazes me. This big 4-5 is an important milestone that I want to celebrate with love and happiness. Raise a glass to this new decade! Stay as young and beautiful as ever. Cheers to many more birthdays my lovely sister!
22. Sis, you are my best friend. You have always been there for me through thick or thin. I couldn’t image what my life would be like without you. I want to thank you so much for all that you do. I don’t know what I would do without you, but I do know that your birthday is the best day of the year and every year we get older together! I love you forever sister, happy 45th birthday!!
23. The years have been good to us and you. You are still as beautiful, wise and talented as you were when we were children. As your babies they’ve done a good job of keeping you young, hip and relevant! Happy 45th birthday. I love you sis!
24. Hey sis! Happy 45th birthday! You are the best sister anyone could ever have. I hope you’re day is filled with excitement, family and friends. We all love you dearly!!
25. Happy 45th Birthday to the oldest, youngest sister, best friend, and anything else you can think of. You’re truly one of a kind, I don’t know what I would do without you! All my love and birthday wishes!
26. A sister is a gift from above who brightens the path where our journey leads. You are loyal and true, with a heart of gold, our family’s guiding light. Happy 45th birthday, dear sister!
27. Happy 45th Birthday Sis! I always knew I would be so lucky to have a sister like you. You have been there for me throughout everything, just a phone call away to talk and listen, or to vent. Most of all, thanks for being my BFF! I love you sis!!
28. 45 years…you turned 45! I can’t believe it. I’ve known you for 45 years, more than half of my life and we’ve shared so much together laughter, tears, love. You are a beautiful person inside and out, with an amazing ability to see beauty in everything you do. I hope all your dreams come true, big and small!
29. Also See: 40th Birthday Wishes For Sister
30. You’ve always been a sister to me, one that I could depend on and trust. From the moment you were born our mother knew she had created an amazing person. And now the years have passed and you have grown into your own person, and although we don’t always see eye-to-eye, I can tell that you are growing into a wonderful woman. So Happy 45th Birthday sis, and I hope it brings you everything that you were hoping for.
31. You are the best sister and best friend I could ever ask for. I can’t believe you’re going to be 45 years old! A group of us got together to get you a card, but it is hard to find one good enough to tell you how amazing and beautiful you are. As your loving sister, I wish you a happy 45th birthday!
32. Dear sister, I want to say Happy 45th Birthday to you. You are a wonderful and loving person. I feel lucky that you are my sister. Having you in my life has made it more meaningful than it could ever be without you. I love you so much!
33. Every day that goes by I feel older, and I can honestly say I don’t feel a minute of it. I’m blessed because I have such an amazing family who supports me in everything. You are my big sister and I have so much respect for you. 45 years young is nothing to complain about, so keep it up! Happy 45th Birthday Sis!
34. I remember back to our childhood, when we would stay up late at night making forts out of my sheets and dressing up dresses for make believe. I always admired your strength and how you were always there for me. Now as you get older I find myself looking up to you more than ever. I hope that this next decade is full of excitement, inspiration, love and happiness. Happy 45th birthday.
35. Happy 45th birthday, my dear sister. I would like to tell you how much you mean to me, but there are no words in the dictionary that can do it justice. All I can say is that I hope this second half of your life is better than the first, because I’m not going to be around forever.