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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
“A wonderful selection of beautiful cards for all occasions. Personalizations come out perfect. Shipped quickly and with upmost care. Best place to order cards.”
June - 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
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Cards: 4,861 Pages: 163
Most Popular Newest Show adult cards
Sister 30th Happy Birthday Colorful Balloons card
Happy 85th Birthday, Sister, Monarch Butterfly car…
Happy 76th Birthday for a Sister, Rudbeckia flower…
Happy Birthday Sister card
Happy Birthday Little Sister, Rhinoceros card
Happy Birthday to my Sister, Irish Blessing, water…
Happy Birthday to Sister Pretty Purple Floral Hear…
Little Sister Birthday I Was So Happy When Mom And…
For Sister’s July Birthday with Water Lily Border …
Sister 74th Birthday Pink Teacup with Lily of the …
8th Birthday Big Sister Unicorn Sitting On Rainbow…
Sister’s 1st Birthday with Pretty Floral Pattern c…
Birthday to Sister White Daisies card
87th Birthday, Sister, Pink Rose card
Fifty Eighth Birthday Card Cartoon Bear My Sister’…
Best Sister Ever 58th Birthday Typography in Pink …
Big Sister Arabian Horse Birthday Card
Happy Birthday to Sister Peacock Sitting on Tree S…
Magenta Pink Petunias Pastel Birthday Personalized…
Birthday for Sister Wildflowers card
Birthday Drinks for Fabulous Sister card
Happy 74th Birthday for a Sister, Rudbeckia flower…
Birthday Humor for Sister card
Happy 66th Birthday or a Stunning Sister, Purple A…
Birthday Sister Artist Assortment of Brushes in Ja…
For Sister on Birthday Spring Flowers Watercolor I…
18th Birthday for Sister Trendy Bling Turquoise Dr…
Best Sister Ever 18th Birthday Typography in Pink …
Happy Birthday Wishes, Sister, Striking Purple Bea…
Sister, Happy Birthday (Sock monkey & Tutu) card
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