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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 (191,597)
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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
“Darling card and very appealing to a young child. Quality card with nice envelope.”
JUDITH - Nov 2nd, 2026
Cards per Page:
Cards: 4,835 Pages: 162
Most Popular Newest Show adult cards
Autumn Birthday Leaves and Squirrel for Sister car…
Sister 45th Birthday Pink Teacup with Lily of the …
2nd Birthday for Sister, Colored Balloons in Blue …
Sister Happy July Birthday with Pink Water Lily ca…
For Sister 17th Birthday with Primrose Flowers and…
Happy 101st Birthday, Sister, Monarch Butterfly ca…
For Sister 5th Birthday Hip Hip Hooray Pretty Hear…
Sister, 38th, Happy Birthday, Mason Jar, Flowers, …
Sister 48th Birthday Pink Teacup with Lily of the …
27th Birthday for a Special Sister, Magnolia Bloss…
Happy 99th Birthday, Sister, Monarch Butterfly car…
Sister Happy Birthday, Pink Dahlia card
Sister 51st Birthday Pink Teacup with Lily of the …
Happy Birthday Sister Flowers card
Sister 53rd Birthday Pink Teacup with Lily of the …
Happy 22nd Birthday Sister with Typewriter, Chicka…
Happy 34th Birthday for a Sister, Rudbeckia flower…
Sister 54th Birthday Pink Teacup with Lily of the …
Sister, 42nd, Happy Birthday, Mason Jar, Flowers, …
Happy 97th Birthday, Sister, Monarch Butterfly car…
Happy Birthday Sister, Blaze Rose card
Hey Sister, its Your 16th Birthday, Sea Shells and…
8th Birthday for Sister, Colored Balloons in Blue …
Happy 95th Birthday, Sister, Monarch Butterfly car…
Happy Birthday to my Sister card
Sister’s 6th Birthday Rainbow Unicorn card
Sister 57th Birthday Pink Teacup with Lily of the …
Happy 26th Birthday Sister with Typewriter, Chicka…
9th Birthday for Sister, Colored Balloons in Blue …
Sis Birthday Butterflies and Flower card
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