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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 recently had an appointment with my doctor. She was tearful during the exam. The office help noticed and I chimed in. She began telling her story to me and I sent this card to cheer her up. I liked the inside message and front picture. I felt so happy. I was able to send this card to cheer her up a bit. She was going through a rough time personally. The card fit the situation. Paul Safran”
Paul - Camarillo, Ca. - Nov 1st, 2026
“Greeting Card Universe is my go to for all my cards. They have a great selection for all occasions. I just got my sister a lovely birthday card for her 75th birthday and I like that I was able to edit the inside with my own personalized message. Good quality, always great and never lets me down.”
Nancy - Nov 2nd, 2026
Cards per Page:
Cards: 4,840 Pages: 162
Most Popular Newest Show adult cards
For Sister on 25th Birthday Custom Pink Japanese A…
For Sister 18th Birthday Hip Hip Hooray Pretty Hea…
Sister, 31st, Happy Birthday, Mason Jar, Flowers, …
Sister 42nd Birthday Pink Teacup with Lily of the …
Birthday - Sister - Butterfly - Digital Art card
Sister, Birthday, flowers card
Sister, Happy Birthday, Acrostic Flowery Complimen…
Sister 7 Year Old Birthday Gamer Controller card
For Sister on Birthday Lady in Maternity Blue Dres…
Sister Happy Birthday! Floral Swirl Motif, Lovely …
Sister 52nd Birthday Pink Teacup with Lily of the …
Happy Birthday Sister House Landscape Farm Garden …
Sister 4th Birthday Teddy Bear Ballerina card
Happy Birthday Sister Cute and Colorful Zebra Artw…
For Sister on Birthday Scawgill Bridge Cumbria Eng…
Humorous Sister Birthday The Most Beautiful Kind A…
Happy Birthday Sister Pink Flowers Wildflower Flor…
Sister Birthday Card - Yellow Rose card
Sister’s 2nd Birthday Cute Girl Hugging Teddy Artw…
Little Fish with a Big Happy Birthday Wish, for a …
Sister, 49th, Happy Birthday, Mason Jar, Flowers, …
Sister’s 3rd Birthday Cute Girl Hugging Teddy Artw…
For Sister on Birthday Wintery Lane Watercolor Lan…
Happy Birthday Sister Landscape Tree Nature Summer…
Sister, 45th, Happy Birthday, Mason Jar, Flowers, …
Sister, Hickory Dickory Dock Mouse And Clock card
Birthday Heart of Flowers for a Sweet Sister on he…
Best Sister Ever 93rd Birthday Typography in Pink …
Happy Birthday To My Sister, fun font and pinwheel…
Sister 6th Birthday Crazy Socks card
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