The best birthday wishes to write in your sister's card
When it comes to close bonds, none is stronger than that between sisters. Simply put, your sister is your reliable, trusted confidante and unwavering cheerleader. That’s why her birthday is the perfect time to let her know how much she means to you.
We know you can write a whole book about why you love her, but if you need something short and sweet for her birthday card, look no further than these best birthday wishes for your sister. We even included a bunch of ideas for your sister-in-law because even though she isn't blood, she's definitely one of your favourite people in the family.
Opt for something funny or go for more of a heartfelt saying. You can even take elements of some from the list and add personal touches with an anecdote or fond memory. Write your well wishes inside a greeting card, text them or, if she’s an avid social media user, post them as an Instagram caption under your favourite sibling photo. No matter how you share your birthday message, we’re pretty sure it will leave a lasting impression.
Funny birthday wishes for your sister:
You’re officially too old to drop it like it’s hot, so please just sit down like it’s cold. Happy birthday, sister!
Cue the cocktails, sis! It's time to celebrate your special day!
Thanks for being the best gossip in the fam. Childhood would have been so boring without you!
Happy birthday to the person who always steals my clothes. For my birthday, I'd like them back!
I’m sorry I called you old. I really thought you knew…Happy birthday!
Happy birthday to my sister. I love you enough to get you this folded piece of card.
You may be the queen today but remember who wears the crown the other 364 days of the year! Happy birthday, sister.
I can’t believe you wanted to marry into this wacky family. I guess you must be just as wacky as the rest of us! Best wishes on your birthday, sister-in-law.
Happy birthday to the person who will always be older than me.
You may be the older sister, but I’ll always be the smartest! Happy birthday!
I’m pretty sure I’m the favourite daughter, but since it’s your special day, I’ll let you think otherwise. Happy birthday, sis!
They say the older you get, the wiser you become. Well, I guess at this point you’re one of the wisest people on earth. Happy Birthday, sister!
I’m looking forward to growing old with you, and happy that you have a head start. Happy birthday!
Because it’s your birthday, I’ll let you eat the first slice. Happy birthday, sis!
Short and sweet birthday wishes for your sister:
I adore you today and always. Happy birthday sis!
You’re simply the best. Happy birthday sis!
No one compares to you. I love you. HBD!
Thanks for being my first bestie. Happy birthday.
Happy Birthday sister! I love you.
You’re the icing to my cake. Happy birthday, sister!
Happy birthday to my best friend.
Cheers to another year around the sun. Happy birthday!
Happy birthday, dear sister.
Wishing the best sister in the world a happy birthday.
I’m so proud to call you my sister. Happy birthday!
You mean so much to me. Happy birthday sister!
I love you so much! Happy birthday to my best friend.
Happy birthday to the most wonderful sister in the world!
Heartfelt birthday wishes for your sister:
Happy birthday, dear sister! May your special day be as beautiful and extraordinary as you are. You deserve all the happiness and love in the world.
Friends may come and go, but sisters are forever. Happy birthday!
I will always be your biggest fan and cheerleader. Happy birthday to the absolute best sister in the world.
You brighten my life and I’m forever grateful for you. Happy birthday to my rock.
I don’t know what I’d do without you in my life. Happy birthday, dear sister.
No matter how old we get, I’ll always look up to you. Happy birthday to my big sister.
No one knows me like you and no one ever will. Happy birthday to my first and forever friend.
You are the most thoughtful, dependable and caring person I know. How did I get so lucky to have you as my sister? Happy birthday to you.
Wishing the world’s best sister a wonderful birthday. You deserve everything your heart desires.
No matter what life throws my way, I know that I can always count on you sister. Happy birthday.
Today we celebrate the person who brings so much joy to our lives. Happy birthday, sister.
When times are good and when they’re bad, you’re the best sister I could ever have. Happy birthday!
You are one of my biggest inspirations. Wishing you the happiest birthday!
You were my first friend and will always be my best. Happy birthday, sister.
You continue to be my biggest inspiration. Happy birthday sis!
I’m so lucky to have a beautiful and kind-hearted sister like you. I hope you have a wonderful birthday.
Birthday blessings for your sister:
On your birthday, the almighty God decided to bring you into this world. I'm grateful to you for being my sister and adding all this joy to my life, and I wish you a happy birthday.
May you have a blessed year ahead. Wonderful things are coming your way!
May today bring you genuine love and abundant blessings that shower upon you today and always. Happy birthday.
I wake up every morning thanking the heavens above for making us sisters. There’s not a person on earth that I’d rather be bonded with for life. Happy birthday!
I am so blessed to have the best sister on the planet. Happy birthday sis!
You’re one of the biggest blessings in my life and I never take it for granted.
Sister, your love is one of the greatest gifts. May God continue to bless you. Happy birthday.
I pray that you’re blessed today and always. Happy birthday sister!
I thank God for choosing you to be my sister. Happy birthday, sissy!
Today we honour and celebrate the day you were born. For me, it was the day my life changed forever and I’m forever grateful. Happy birthday, sister.
Having a strong sibling bond like ours is one of life’s biggest blessings. I never take our closeness for granted. Happy birthday, beautiful sister.
Wishing you a fun and festive birthday filled with endless blessings.
I pray that you get everything you want this year and beyond. Happy birthday
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