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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
“Love the cards I get from this site.”
Kristine - Nov 3rd, 2026
Cards per Page:
Cards: 4,835 Pages: 162
Most Popular Newest Show adult cards
Sister Happy 3rd Birthday Adorable Girl and Cat Fa…
Happy 7th Birthday to Sister Pretty Ballerina card
Hey Sister, its Your 80th Birthday, Sea Shells and…
Happy 50th Birthday Sister Garden Bouquet card
Slices of Cake with Candles Lit Birthday for Wonde…
Princess Magical Castle Little Sister Birthday car…
Happy 70th Birthday Sister Purple Flowers card
Birthday, Sister, Tulip Flower, Religious card
Have a Sweet Birthday - Text Card
Happy 60th Birthday Sister with Typewriter, Chicka…
Happy Birthday Very Special Sister Pink Flower Bou…
Sister Happy Birthday Colorful Balloons Confetti c…
Happy 73rd Birthday Sister with Typewriter, Chicka…
Best Sister Ever 35th Birthday Typography in Pink …
Sister Birthday Across the Miles Cute Cat in Hot A…
Best Sister Ever 71st Birthday Typography in Pink …
Best Sister Ever 83rd Birthday Typography in Pink …
Happy 67th Birthday to a Special Sister, Orange fl…
For Sister on Birthday Purple Irises Floral Illust…
Birthday, Sister, Floral, Roses, Daisies card
Birthday, Sister, Abstract Vivid Colors, Flowers, …
Personalized Birthday Monarch Butterfly with Milkw…
Sisters on Diet Birthday Cupcakes Blank Inside car…
Chicken Birthday Card with Balloons for Sister car…
Sister Happy April Birthday Daisy April Birth Mont…
For Sister’s 16th Birthday with Hearts Stars and W…
61st Happy Birthday Sister, Magnolia Blossom card
Older Sister Birthday A Friend And A Defender card
Birthday Heart of Flowers for a Sweet Sister on he…
Pink Watercolor Flowers Sister 90th Birthday card
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