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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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Birthday (191,703)
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Shopper Testimonials
“I have given the GCU name to more than a few of people to whom I have sent your cards. I should be getting a commission for the business I send your way. EVERYONE loves your cards.”
Kathleen - Masonic Home, Kentucky - Nov 2nd, 2026
“I like that I can have a theme for Christmas this year snowmen (or snowpersons) last year it was trees. Can't remember the other years. Thank you for making it so easy to order.”
Phyllis - Nov 4th, 2026
Cards per Page:
Cards: 4,861 Pages: 163
Most Popular Newest Show adult cards
4th Birthday Big Sister Unicorn Sitting On Rainbow…
Sister Birthday, Cardinal card
Birthday sister, message from a blue bird card
Little Sister, Happy Birthday, Psychedelic Garden …
Sister, 72nd, Happy Birthday, Mason Jar, Flowers, …
Happy Birthday to My Sister Two Purple Flowers car…
Wish Happy Birthday to Your Golf Player Sister! ca…
21st Birthday, Sister, with Magnolia card
Sister Happy Birthday Digital Watercolor of Two Hy…
Happy Birthday for my Big Sister, White Tailed Faw…
Happy Birthday To My Dear Sister Bicycle Flowers c…
Sister 96th Birthday Pink Teacup with Lily of the …
Sister Birthday Birds on Floral Vase card
For Sister on Birthday Watercolor Snowdrops Painti…
Happy Birthday Little Sister, Daisies in the Sun c…
Retro Colorful Confetti Sister Birthday Card
Pink theme Princess Angel Sister Happy Birthday ca…
Best Sister Ever 85th Birthday Typography in Pink …
Pink Sweet Peas Floral Pastel Birthday Personalize…
Extreme Floral Sister Birthday card
97th Birthday, Sister, Pink Rose card
Birthday to Sister with a Bunny In Front of a Beau…
Happy Birthday Sister Flowers and Hearts card
Sister Happy Birthday with Minimalist Black and Wh…
Happy 63rd Birthday to a Wonderful Little Sister, …
Sister Sweet Cherry Cupcake Birthday card
Sister 17th Birthday Polka dots card
Happy Birthday, Little Sister, Red Bleeding Heart …
Happy Birthday Little Sister, Sunset and Heart car…
Little Sister, Happy Birthday,Compliments, Acrosti…
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