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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 (191,681)
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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
“Cards were exactly what I ordered. The personalization was perfect. Will definitely buy again.”
Christine - Nov 2nd, 2026
Cards per Page:
Cards: 4,840 Pages: 162
Most Popular Newest Show adult cards
Happy 47th Birthday to a Wonderful Little Sister, …
Sister 9th Birthday Pretty Little Girl with Puppy …
Sister 16th Birthday Cupcake Hearts and Polka Dots…
Sister 46th Birthday Blue Crescent Moon and Stars …
Sister 15th Birthday Cupcake Hearts and Polka Dots…
Sister 3rd Birthday Cute Unicorn and Clouds card
Birthday, Sister, Layers of Black & White Patterne…
Sister 2nd Birthday Cute Unicorn and Clouds card
Happy 59th Birthday for a Sister, Rudbeckia flower…
4th Birthday for Sister, Colored Balloons in Blue …
Sister 10th Birthday Cupcake Hearts and Polka Dots…
Happy 32nd Birthday for a Sister, Rudbeckia flower…
Sister’s 1st Birthday Rainbow Unicorn card
Happy 99th Birthday for a Sister, Rudbeckia flower…
Happy Birthday Sister Cute Girl Hugging Teddy Artw…
Happy Birthday Sister Pastel Spring Flowers card
Big Sister 9th Birthday Glittery Effect Butterflie…
Sister’s 4th Birthday Rainbow Unicorn card
Sister’s 5th Birthday Rainbow Unicorn card
Sister 5th Birthday Cupcake Hearts and Polka Dots …
Happy Birthday to Sister Cute Cat with Balloon car…
Birthday Butterflies - Sister - Modern Pop Art car…
Red Tulip Garden - Happy Birthday Card for Sister …
Happy 38th Birthday for a Sister, Rudbeckia flower…
Sister’s 4th Birthday Cute Girl Hugging Teddy Artw…
Happy Birthday Sister Purple Flowers card
Sister’s 5th Birthday Cute Girl Hugging Teddy Artw…
Happy Birthday Big Sister, Butterfly card
Happy 20th Birthday for Sister, Blue Aqua and Red …
Sister 13th Birthday Teen Pretty Girl in Balloons …
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