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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 (187,261)
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Shopper Testimonials
“Love all the cards that I buy, I even personalize some of them.”
Elaine - North Babylon, New York - Aug 26th, 2025
“Love all the cards, so personal and unique for all occasions”
Christine - Aug 23rd, 2025
Cards per Page:
Cards: 4,631 Pages: 155
Most Popular Newest Show adult cards
Happy 53rd Birthday, Sister, Monarch Butterfly car…
Happy Birthday to a Wonderful Sister, Orange flowe…
Birthday, Sister, Wall Hanging Patchwork Quilt, Co…
5th Birthday Card for Sister colored balloons card
Birthday - SISTER - Cottage Garden - Tea For Two -…
Happy Birthday - Sister- Floral card
Happy 35th Birthday for a Sister, Rudbeckia flower…
Happy Birthday for sister. Orange Daisy card
Birthday wishes for sister, little presents and co…
Happy Birthday, A Little Birdie Told Me_Big Sister…
Happy 96th Birthday, Sister, Monarch Butterfly car…
Birthday to Sister, Humor, Raccoon looking at toes…
11th Birthday for Sister, Colored Balloons in Blue…
Happy 48th Birthday, Sister, Monarch Butterfly car…
Birthday To Sister, Raccoon flying an airplane car…
20th Birthday to Sister, Pomeranian smiling wearin…
For a Sweet Sister on Her 38th Birthday, Starfish …
Happy 48th Birthday for a Sister, Rudbeckia flower…
Happy 84th Birthday, Sister, Monarch Butterfly car…
Happy 22nd Birthday or a Stunning Sister, Purple A…
Happy 95th Birthday or a Stunning Sister, Purple A…
Sister 21st Birthday Champagne and Cake card
Birthday Heart of Flowers for a Sweet Sister on he…
White Clementis/Birthday card
Happy 94th Birthday or a Stunning Sister, Purple A…
Happy 86th Birthday to a Special Sister, Orange fl…
Happy 79th Birthday, Sister, Monarch Butterfly car…
Birthday Heart of Flowers for a Sweet Sister on he…
Happy 77th Birthday, Sister, Monarch Butterfly car…
Happy 41st Birthday to a Wonderful Little Sister, …
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