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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
“Great quality and excellent packaging to protect the delivery. I also love your wide selection of cards. I will be back!”
Susan - 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: 4,835 Pages: 162
Most Popular Newest Show adult cards
34th Birthday for a Special Sister, Magnolia Bloss…
37th Happy Birthday Sister, Magnolia Blossom card
Sister 10th Birthday Happy Birthday with Pretty Fa…
Sister 11th Birthday Happy Birthday with Pretty Fa…
Sister 26th Birthday Blue Crescent Moon and Stars …
Sister, birthday, tulip, flower, pearl card
35th Happy Birthday Sister, Magnolia Blossom card
Sister 27th Birthday Blue Crescent Moon and Stars …
Sister Happy Birthday Powerful Strong Independent …
Water Lily and Pods -Happy Birthday Sister card
Sister Birthday With A Sweet Watercolor Prancing P…
Happy 20th Birthday, Sister, Monarch Butterfly car…
Sister 30th Birthday Blue Crescent Moon and Stars …
Sister 31st Birthday Blue Crescent Moon and Stars …
Big Sister 9th Birthday Young Girl in Balloons car…
Sister’s 1st Birthday Cute and Colorful Zebra Artw…
Happy 18th Birthday, Sister, Monarch Butterfly car…
Happy 55th Birthday Sister Garden Bouquet card
Birthday, Sister,Purple Squares Pattern/Faux Gems …
Happy Birthday, Sister card
Sister’s 4th Birthday Cute and Colorful Zebra Artw…
Sister 36th Birthday Blue Crescent Moon and Stars …
Little Fish with a Big Happy Birthday Wish Big Sis…
My Fun Loving Little Sister - Celebrate Together -…
Pink Water Lily & Green Pods - Happy Birthday Sist…
29th Birthday for a Special Sister, Magnolia Bloss…
Sister Age 9 Teddy Bear card
40th birthday for sister, with a stitched flower c…
16th birthday for sister, with a stitched flower c…
29th birthday for sister, pearls and petals card
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