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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
“I liked the design and thoughtful message that expressed the sentiment that I wanted to send. Cards arrived promptly and I like the option to personalize some of the cards.”
Doris - Nov 2nd, 2026
“I have used Greeting Card Universe (GCU) for quite some time. It is a pleasure to write a review for them. The website is the best of the sites I have seen, which are similar to GCU. I have found a card -- every time -- for-every- reason that I've needed. Thank you for the great card! Anthony”
Anthony - Nov 2nd, 2026
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Cards per Page:
Cards: 4,861 Pages: 163
Most Popular Newest Show adult cards
Sister 13th Birthday Polka dots card
Happy 89th Birthday to a Special Sister, Orange fl…
74th Happy Birthday Sister, Magnolia Blossom card
69th Happy Birthday Sister, Magnolia Blossom card
Happy 76th Birthday to a Special Sister, Orange fl…
Sister Birthday Flowers and Butterfly card
Sister Birthday Pink Apple Blossom Personalized Re…
18th Birthday To Sister, Hot Dog with face, green …
Birthday Heart of Flowers for a Sweet Sister on he…
Hand Lettered Birthday It’s Your Special Day with …
Funny Birthday Card For A Sister You’re Like A Sis…
Happy 62nd Birthday or a Stunning Sister, Purple A…
Hey Sister, its Your 73rd Birthday, Sea Shells and…
Happy Birthday to My Twin Sister Watercolor Butter…
Best Sister Ever 54th Birthday Typography in Pink …
A Birthday Wish for little sister, As The Sun Rise…
Sister’s Birthday Sister’s Don’t Need Words With C…
Humorous Sister’s Birthday Card If I Had To Have A…
Sister Birthday Boho Birds and Sun card
Blue Watercolor Flowers Sister Happy Birthday card
Happy Birthday to Sister Feminine Vintage Flowers …
Birthday for Sister with Hand Painted Pansies and …
My Bold And Diva-licious Sister’s Birthday Cake ca…
Birthday Heart of Flowers for a Sweet Sister on he…
Birthday Heart of Flowers for a Sweet Sister on he…
Forced on Sister card
Happy 59th Birthday or a Stunning Sister, Purple A…
Chincoteague Pony on the Beach--Happy Birthday Sis…
To My Sister Vintage 1920’s Photo Birthday Card
Little Sister 1st Birthday Cute Girl with Animal F…
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