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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
“Love both of these cards. Couldn't find what I wanted anywhere else and these are perfect.”
Earlene - Nov 2nd, 2026
“We would be lost without Greeting Card Universe. What other greeting card company has endless selections, the added bonus of personalization and prices that cannot be beat. We highly recommend Greeting Card Universe to all those who are frustrated with the limited greeting card selections in brick-and-mortar stores.”
Kathryn - Nov 3rd, 2026
Cards per Page:
Cards: 4,861 Pages: 163
Most Popular Newest Show adult cards
Happy 60th Birthday Sister Cherry Blossom Tree Spa…
Sister Happy Birthday Pug and Cupcakes card
Happy 74th Birthday or a Stunning Sister, Purple A…
Sister Happy Birthday with Pretty Flowers Personal…
67th Happy Birthday Sister, Magnolia Blossom card
Happy 11th Birthday to Sister Pretty Ballerina car…
Happy Birthday Flowers for Sister Pretty Butterfly…
Sister 12th Birthday to Awesome Tween Young Girl w…
Sister 11th Birthday to Awesome Tween Young Girl w…
Sister 10th Birthday to Awesome Tween Young Girl w…
Birthday, Big Sister, Two Tricolored Heron Chicks,…
Happy Birthday Sister Red Wine and Rose card
Sister Birthday Add a Picture Roses card
Birthday, Sister, Pink Lace Heart card
Birthday - Sister, Umbrella Decorated with Fresh F…
Sister Sperm Whale With Flowers Ocean Plants card
A Big Birthday Wish for a Wonderful Sister, Butter…
Birthday, Sister, Large Garden Pink Peony Flower c…
Birthday, Sister, Pink Rose on Black card
30th Birthday, Sister, Pink Rose card
For Little Sister’s Birthday with Fairy Princess c…
Sister 80th Birthday Wildflowers Mason Jar Celebra…
Happy Birthday Sister- Stream of Hearts customizab…
Happy Birthday Sister Snowy Forest Trees Winter Ni…
Humorous Sister Birthday To Someone Who Reminds Me…
72nd Happy Birthday Sister, Magnolia Blossom card
Birthday to Sister with a Foamy Mug of Beer in Fro…
Birthday pink leopard furry photo card for sister …
BIRTHDAY, SISTER, YELLOW DAISYon GREEN TEXTURE BAC…
Sister Birthday It’s Possible I Might Actually Lik…
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