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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 (191,718)
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Shopper Testimonials
“I haven't been disappointed with all my card orders...plus a lot of fun to create!”
Mabel - Las Vegas, Nevada - Nov 3rd, 2026
“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
Cards per Page:
Cards: 4,861 Pages: 163
Most Popular Newest Show adult cards
Happy Birthday Sister Autumn Fall Trees Meadow Lan…
Wonderful Sister Birthday Two Hand Drawn Colored H…
Happy Birthday sister with tulips Sister’s Birthda…
Birthday, Sister, White Pelican card
Happy 86th Birthday for a Sister, Rudbeckia flower…
Happy 45th Birthday Sister Garden Flowers card
Purple Tulips, birthday Sister card
Hey Sister, its Your 100th Birthday, Sea Shells an…
Happy Birthday Sister bouquet of blue flowers in b…
Happy Birthday, Sis! - Flowers and Dragonfly card
24th Birthday, Sister, with Magnolia card
Hey Sister, its Your 29th Birthday, Sea Shells and…
BIRTHDAY SISTER card
Sister 24th Birthday Green Flowers card
93rd Birthday, Sister, Pink Rose card
Naughty Puppy Sleeping--Birthday for Twin Sister c…
Sister, Happy Birthday Balloon card
Sister 39th Birthday Green Flowers card
Rose Bouquet Birthday Card for Sister card
Pink English Rose Happy Birthday to Sister card
Happy Birthday Little Sister, Butterfly card
Birthday Heart of Flowers for a Sweet Sister on he…
5th Birthday Sister Unicorn Sitting On Rainbow Wit…
Happy Birthday to a Wonderful Little Sister, Peach…
Birthday To Sister, Raccoon Driving A Bumper Car c…
52nd Birthday, Sister, Pink Rose card
Happy 109th Birthday Sister with Typewriter, Chick…
Sister Birthday Delicate Pink Flowers and Wreath c…
Happy Birthday Big Sister Doodled Flowers & Bee Sc…
Sister Birthday Custom Name Kayleigh Cupcake Heart…
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