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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 (191,712)
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Shopper Testimonials
“I absolutely love Greeting Card Universe! It is so much fun being able to create the text of the cards you are buying. Price is another bonus, their cards are so reasonable. Also, Customer Service is outstanding and work with you perfectly. I recommend this business 100%”
Karen - Nov 1st, 2026
“GREAT selection, very user-friendly website, love the cards I've ordered!”
Judy - Nov 3rd, 2026
Cards per Page:
Cards: 4,835 Pages: 162
Most Popular Newest Show adult cards
42nd birthday for sister, pearls and petals card
Humorous Sister Birthday Card I Didn’t Need A Soci…
For Sister on Birthday Farmhouse in Lake District …
Happy Birthday sister card
19th Birthday,Sister,Purple Helebore Flower card
Happy Birthday, Sister! Garden Oval card
Happy Birthday Sister Birthday Cake Candles Pink C…
Happy Birthday Sister Pink Tulips Flowers Floral B…
Happy Birthday Sister Pink Roses Peony Flowers Flo…
Sister 10th Birthday Crazy Socks card
Sister 13th Birthday Crazy Socks card
Birthday for Sister - Pink and Purple Flowers card
Happy Birthday Sister Mouse Floral Garden Fence Bo…
Happy Birthday Sister Acorn Leaves Autumn Sky Natu…
Happy Birthday Sister Art Nouveau Flower Floral Bo…
Happy Birthday for Sister a Watercolor of Orchid f…
Sister, Birthday Pass-Funny Haha card
Sister 2nd Birthday Sports Balls card
Sister 3rd Birthday Sports Balls card
19th Birthday for Sister Trendy Bling Turquoise Dr…
Sister 5th Birthday Sports Balls card
Happy Birthday Sister Botanical Floral Flowers Pin…
Happy Birthday Sister Autumn Fall Trees Clouds Lan…
22nd Birthday for Sister Trendy Bling Turquoise Dr…
Sister 7th Birthday Sports Balls card
19th Birthday, Sister, with Magnolia card
35th Birthday, Sister, with Magnolia card
Sister 10th Birthday Sports Balls card
Sister 11th Birthday Sports Balls card
Sister 12th Birthday Sports Balls card
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