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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 love every card I order from Greeting Card Universe! Why? Because you can find a card for everything you may need. I first discovered them in 2016 when I needed a card for my daughter's PHD graduation. I was able to design one with her actual picture. All her friends asked where I had gotten it! I have ordered since then! Quality is EXCELLENT! You can personalize anything! I even sent a thank you to one of my doctors who went above and beyond! He was so surprised he showed it to everyone on his staff! Great company!”
Elvira - Nov 1st, 2026
Cards per Page:
Cards: 4,861 Pages: 163
Most Popular Newest Show adult cards
Happy 25th Birthday for a Sister, Rudbeckia flower…
Birthday to Sister, humor, Zoo animals with a racc…
Sister 9th Birthday Cute Dog in Party Hat card
Happy 40th Birthday or a Stunning Sister, Purple A…
Happy 54th Birthday for a Sister, Rudbeckia flower…
Sister Birthday with Mango Colored Calla Lilies Ph…
Happy 96th Birthday or a Stunning Sister, Purple A…
Happy Birthday Tropical Island for Sister card
Birthday Sister Window Scene with Cupcake and Stac…
Hey Sister, its Your 57th Birthday, Sea Shells and…
Birthday Greeting for Sister Warm Wishes card
Happy 22nd Birthday, Sister, Monarch Butterfly car…
Happy 21st Birthday, Sister, Monarch Butterfly car…
53rd Happy Birthday Sister, Magnolia Blossom card
52nd Happy Birthday Sister, Magnolia Blossom card
Happy Birthday Sister, Magnolia Blossoms card
Birthday card, orchid, flower, sister, card
Birthday to Sister, Pomeranian wearing a party hat…
Sister’s Birthday, Humor, Cattle Egret Bird card
Sister Birthday with Ginger Cupcake Cat and Confet…
22nd Birthday, Sister, Pink Rose card
Birthday Sis, arched bridge with reflection card
36th Birthday, Sister, Pink Rose card
31st Birthday, Sister, Pink Rose card
Sister’s Birthday Wishes, Sister, Purple and Mauve…
Birthday ~ Sister ~ Autumn Harvest Wheat card
Sister Happy Birthday - General - Fractal Abstract…
16th Birthday, Sister, Pink Rose card
Happy Birthday Sister Monarch Butterfly card
50th birthday for sister, with a stitched flower c…
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