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Last Updated on December 20, 2022

A sister is a person with whom we share lots of fond childhood memories. Even when we’re all grown up, sisters remain one of our closest companions in the family.

That’s not to say that sister-sister or sister-brother relationships are always rosy. Sometimes we argue over the most trivial things, such as who got the best dress for Christmas or who took after mom’s finest qualities.

Some of these innocent sisterly rivalries have a way of spilling over into our adult lives. Even after exiting the family nest, sisters will still find themselves comparing their spouses, personal tastes, and professional achievements.

Regardless, sisters are our true bosom buddies. They help us nurture our strengths and overcome our insecurities. They root for us when everyone else won’t.

So, it’s only fair that we pull all the stops when it comes to celebrating our sisters. One way to express your sincere appreciation for your sister is by helping them celebrate their birthdays in style.

But finding the right words to write in a happy birthday card for sister isn’t a walk in the park. We understand that all too well, which is why we’ve curated a definitive collection of 80 amazing ways to wish your dear sister a happy birthday.

Sentimental Happy Birthday Wishes for Sister

1. A sister is a lot like homework: basically, a necessary evil. It’s annoying, but it helps you learn so much. Just kidding, thanks for always being my teacher in life. Happy birthday!
2. An astounding sister like you should have an astounding day on your birthday! I hope it heralds the start of a new year filled with good times and great friends. May you get everything your heart desires this year. Happy birthday!
3. As sisters, we share so many things: failures, successes, and spectacular memories together. Thanks for always lending me a shoulder to cry on in my times of need and a fist to bump in my times of triumph!
4. Dear sister, I really do treasure the memories of our times together, because my life is so much better due to your loving presence. Happy birthday to my truly adored and loved sister!
5. Having a sister is like being blessed with two of everything. Two closets, two sets of makeup, and two hearts that are always connected. Thanks for always sharing your things with me even when you didn’t want to. Happy birthday!
6. Having a sister like you is like having a third parent: you hold me up and love me whenever I need it. Thank you for helping to take care of me even when nobody asked you to. Happy birthday!
7. No matter what happens in life, you can always count on me to be there for you. That’s what sisters are for. I’m there for you rain, shine, or anything in between, but I hope your birthday is full of only clear skies.
8. Sis, you always know just the right buttons to push to annoy the mess out of me, but you also always know how to calm me down when others annoy me even more than you do. I hope that you have an annoyance-free birthday, sister!
9. 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.
10. When my days are dark, you are my light and when I am lost, you guide me home. Thank you for always bringing sunshine and faith into my life. It doesn’t go unnoticed or unappreciated. Happy birthday!
11. When we were children, we fought; when we were teens, we argued; and as adults, we have heated discussions. Hey, at this rate when we’re old we’ll have no fire left! Just kidding. There’s nothing I love more than the passion you bring into my life. Happy birthday, sis.
12. When you need someone to be there for you during 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.

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Short Happy Birthday Wishes for Sister

1. Happy birthday dear sister. You deserve everything great that this day offers.
2. Happy birthday to the best sister a girl could ask for! Hope your day is full of fun!
3. Happy birthday to the best sister in the world! Have a fantastic day!
4. Happy birthday to the coolest sister! The day is brighter and more fun when you’re around.
5. Happy birthday, sister. May today be the start of a wonderful, glorious, and joyful year.
6. I hope you have a brilliant birthday dear sister, and find lots of exciting opportunities in the year ahead.
7. If I had to choose someone to be my sister, I would still choose you! You’re the best sister and the coolest girl I know. Have a great birthday!
8. It’s wonderful having a sister like you! I wish you all the happiness in the world. Happy birthday!
9. Sending you lots of love on your birthday. You’re such an incredible sister and I’m so thankful to have you in my life. Happy birthday!
10. The only thing better than having you as my sister is my children having you as their aunt. Happy birthday!
11. We are sisters by chance but we are friends by choice. Love you always. Have a great birthday!
12. Wishing you a wonderful birthday today! Thanks for being such a brilliant sister and my best friend!

Funny Happy Birthday Wishes for Sister

1. Being related to me is really the only gift you need. Just saying. Happy birthday dear sister.
2. Happy birthday sis! I really wanted to get you something incredible for your birthday, but then I realized that my presence alone would be spectacular enough. You’re welcome!
3. Happy birthday sis! Remember, money can’t buy you happiness. But it can buy you a cake (which is basically the same thing).
4. Happy birthday sis, I am political enough to remember your birth date but to forget your age.
5. Happy birthday sister. On your big day, I wish that your failures be as few as the teeth of our grandfather!
6. I could write a million songs about your grace and elegance – but mother always taught us not to lie. Happy birthday dear sis.
7. It’s time to celebrate! May you have many glasses of champagne to drink tonight and may you find the perfect person to buy them for you! Have fun, and happy birthday!
8. Many times in my lifetime I’ve found myself wishing you weren’t my sister. But on today, I send you the sweetest of birthday wishes. Enjoy your day!
9. 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!
10. No one can make me laugh like you do – especially when I look at your face. Happy birthday, sis.
11. Out of all of siblings life has blessed me with, you’re my favorite because only you can see the humor in receiving an empty box as a gift.
12. People say that it is the thought that counts, so I want you to know that I really thought about giving you lots of lovely things for your birthday – like that top you wanted, and those cool shoes. However, this card will have to do as I’m totally broke! I still love you lots! Happy birthday and hope you have a brilliant day!
13. Usually, wisdom comes along with age. It looks like you haven’t reached that age yet, so celebrate your birthday as crazy as it is possible! Happy birthday, sister!

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Happy Birthday Wishes for Younger Sister

1. Dear little sister. It seems you’re growing older. I hope we will continue to share this strong bond between us all through life.
2. Dear little sister. Though we fight like cat and mouse over little things, in the end, I will always give mine to you. Because you are my heart. Happy Birthday sweetie.
3. Despite being the younger one, sometimes you act like you are the older one. I’m proud to have a sister like you who knows everything. Happy Birthday. May God bless you.
4. 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!
5. Happy birthday to my amazing little sister! Remember that no matter how much you grow up, you will always be my baby girl!
6. My wonderful little sister, you really are the most precious gift that God gave me! I hope you have a very happy birthday and that you have lots of fun today!
7. OMG, how did my little sister become so grown up?! I’m sorry to say it, but no matter how old you are, you’ll always be a cute little munchkin in my eyes! I hope you have a brilliant day and year! Happy Birthday!
8. Sometimes you drive me crazy, but I promise I do love you! Happy birthday my cute little sis. Life just wouldn’t be the same without you!
9. You may be my little sister; it doesn’t mean you will fall short of my love. I love you with all my heart. Happy Birthday my sweet little sister.
10. You’re not older than me but surely you are more beautiful than me. I wish I knew the secret of ageing so beautifully. Happy birthday!

Happy Birthday Wishes for Elder Sister

1. Elder sisters are the shadow of mother. I love you and wish you the best Happy Birthday.
2. 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!
3. Happiest birthday to the one I look up to the most! Thank you for being my savior and warrior! I’m so lucky to have you in my life.
4. Happy birthday big sister! Without any doubts, the world would be an amazing place if there were more people like you! You are one of the kinds! I love you.
5. Happy birthday my partner in crime. I miss those days when we were small and helped each other doing pranks on others.
6. Many happy returns of the day, dear sister! Stay away from your worries and responsibilities and enjoy your special day with your loved ones!
7. 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 are in the past. Here’s to your bright future – may it sparkle with joy and delight!
8. My dear sister, thank you for being a brilliant mentor and friend rolled into one! I hope you have an amazing birthday filled with joy and delight!
9. My lovely sister, you always call me a precious gift. But today I want to say that you are my biggest treasure. Happy Birthday to you!
10. Thank God that you had to come first. Otherwise, I had to go through the Bulldogger of mom and dad. I thank you for that. Happy Birthday sissy.

Happy Birthday Wishes for Sister-in-Law

1. A loving heart. A caring nature. For the wonderful person you are, I wish you a day you’ll always remember. Happy Birthday to my Sister-in-Law!
2. Dear sister-in-law, you deserve this day of love & uplifting celebration! We are all so grateful to have you in our family today and every day of the year!
3. Happy birthday to a wonderful sister-in-law. This is the one day a year that you’re encouraged to have your cake and eat it too! Go ahead and indulge!
4. Happy birthday to my sister-in-law. You burst into our lives as brightly as a fireworks display on a clear summer night’s sky and added even more pizzazz to our family! Here’s wishing you a day full of warmth, kindness and surprises!
5. Happy birthday to my sister-in-law. Your presence in our family is a treasured gift. Wishing you many new cherished memories on your big day!
6. Happy Birthday. I am thankful to have you as my sister-in-law. You bring happiness and joy to people around you. I hope the coming year is filled with love and joy.
7. Happy Birthday. Wishing my amazing sister-in-law a wonderful day filled with smiles and laughter.
8. Having you as a sister-in-law is the best gift of all. I hope everything you wish for comes true, and that the year ahead brings all wonderful things your way.
9. To an amazing sister-in-law, I hope this year’s celebration reaches new heights of happiness. I hope your birthday is filled with laughter, love, and all the people you truly care about.
10. To my dear sister-in-Law, I’m sending along the brightest wishes today as you celebrate another year of being beautiful and wonderful. Happy Birthday!

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Happy Birthday Quotes for Sister

1. A sister is a little bit of childhood that can never be lost ~ Marion C. Garretty
2. Always my Sister, Forever my Friend ~ Unknown
3. Every sister is a special gift from God. But He surely blessed me with a sister like you ~ Kate Summers
4. God made us sisters, life made us friends ~ Author Unknown
5. Having a sister is like having a best friend you can’t get rid of. You know whatever you do, they’ll still be there ~ Amy Li
6. I feel so privileged that you are my sister! You are a very special gift that Mother Nature provided me with! You have always been there for me and accompanied me and guided me in every way you could! ~ Babe Arish
7. Sisters are like angels. They sparkle, twinkle, and glow. They are the greatest gift our hearts will ever know ~ Unknown
8. Sisters function as safety nets in a chaotic world, simply by being there for each other ~ Carol Saline
9. Sisters take care of each other, watch out for each other, and comfort each other, are there for each other, through thick and thin ~ Bonnie Li Oscarson
10. We acquire friends and we make enemies, but our sisters come with the territory ~ Evelyn Loeb
11. We share many memories of our childhood. And may we have many more to come as we raise our children. I am blessed to have you as a Sister ~ Byron Rivers
12. What are sisters for if not to point out the things the rest of the world is too polite to mention ~ Claire Cook
13. You keep your past by having sisters. As you get older, they’re the only ones who don’t get bored if you talk about your memories ~ Deborah Moggach

Wrap Up

Evidently, there are lots of messages and quotes to write on a happy birthday card for sister.

It’s recommended to go for birthday wishes that will uplift your sister and make them feel like you truly appreciate their existence.

You might also consider weaving in some humor to add more color and glamor to their big day.