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Birthday Cards for Sister

Browse our collection of birthday cards for sisters! What relationship in your life is more special than the one you share with your sister? No matter what stage of life you are both in, whether she is older, younger or even a twin, we have the perfect card to express your heartfelt birthday wishes. Our birthday cards for sisters cover the gamut from sweet and sentimental to funny and sarcastic.

We offer cards for milestone birthdays, pretty cards, sentimental cards, trendy cards, humorous cards and cards that can be customized to say just what you want. You can even add a picture to make your card truly one-of-a-kind. Don't settle for another generic card off the rack, create a personalized card that she'll cherish as a keepsake for years to come! Once you find the perfect birthday card for your sister, we'll print and mail it the next day!
Birthday Cards for Sister

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Shopper Testimonials
“I absolutely love Greeting Card Universe! It is so much fun being able to create the text of the cards you are buying. Price is another bonus, their cards are so reasonable. Also, Customer Service is outstanding and work with you perfectly. I recommend this business 100%”
Karen - Nov 1st, 2026
“I love every card I order from Greeting Card Universe! Why? Because you can find a card for everything you may need. I first discovered them in 2016 when I needed a card for my daughter's PHD graduation. I was able to design one with her actual picture. All her friends asked where I had gotten it! I have ordered since then! Quality is EXCELLENT! You can personalize anything! I even sent a thank you to one of my doctors who went above and beyond! He was so surprised he showed it to everyone on his staff! Great company!”
Elvira - Nov 1st, 2026
Cards per Page:
Cards: 4,840 Pages: 162
Most Popular Newest Show adult cards
Happy Birthday Special Sister Pink Aster Flower Wa…
Sister 110th Birthday Pink Teacup with Lily of the…
Happy Birthday Sister Flower Bouquet Watercolor ca…
Bathing Brothers for Sister - Funny card
Happy Birthday Delightful Sister, Perky Stick Flow…
Sister’s 3rd Birthday with Pretty Floral Pattern c…
Sister 29th Birthday Pink Teacup with Lily of the …
Colorful landscape and flower garden-Happy Birthda…
9th Birthday Sister Unicorn Sitting On Rainbow Wit…
Sister 33rd Birthday Pink Teacup with Lily of the …
Sister 36th Birthday Pink Teacup with Lily of the …
Happy 107th Birthday Sister with Typewriter, Chick…
Sister 37th Birthday Pink Teacup with Lily of the …
Sister Happy Birthday to the Zest Lemons and Laven…
Flowers 1 - Mom card
Birthday for Sister -Bling card
41st Birthday for sister- Large Cupcake with Cherr…
Birthday for Sister-Owls in Snowy Tree card
Red riding Hood Birthday with white lily, for sist…
Sister Birthday Orchids Custom Photo card
Sister Birthday Puppy and Flowers card
Add a picture,Sister age 20, with pink rose and je…
Add a picture,Sister age 13, with pink rose and je…
100th birthday for sister, with a stitched flower …
Sweet Girl, Buttons, Lace, Happy Birthday Sister c…
Bleeding heart flowers with butterfly for Sister’s…
Sister 45th Birthday Blue Crescent Moon and Stars …
Sister 3rd Birthday Glittery Effect Butterflies an…
Big Sister 2nd Birthday Glittery Effect Butterflie…
Birthday, Sis, Angel’s Trumpet card
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