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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
“The cards are very unique. I loved my cards.”
Gloria - Sep 11th, 2025
“I really love choosing cards for my great grandchildren from your collection. They love seeing their pictures inside, and their names included in the greeting. Also appreciate your vast selection, I can find a topic that suits each individual. I will continue ordering these birthday greetings (and I have lots of great grandchildren!!!)”
Patricia - Sep 11th, 2025
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Cards per Page:
Cards: 4,634 Pages: 155
Most Popular Newest Show adult cards
Sister 23rd Birthday Green Flowers card
Sister 24th Birthday Green Flowers card
Sister 25th Birthday Green Flowers card
Sister 26th Birthday Green Flowers card
Sister 27th Birthday Green Flowers card
Sister 28th Birthday Green Flowers card
Sister 29th Birthday Green Flowers card
Sister 31st Birthday Green Flowers card
Sister 32nd Birthday Green Flowers card
Sister 33rd Birthday Green Flowers card
Sister 34th Birthday Green Flowers card
Sister 20th Birthday with Crown and Gold Look Dots…
Sister 37th Birthday Green Flowers card
Sister 38th Birthday Green Flowers card
Sister 39th Birthday Green Flowers card
Sister 40th Birthday Green Flowers card
Happy Birthday to My Sister Pumpkins and Harvest S…
Butterfly Whimsy Brithday Sister card
Pink Rose Birthday For Sister card
Funky Birthday Cake for Sister card
Happy Birthday Sister Watercolor Paints card
Flower Carnival Sister Birthday card
Birthday Cake Purse for Sister card
Milkweed & Butterflies Sister Birthday card
30th Birthday Purse for Sister card
Sister Blue Tulip Print Birthday card
35th Birthday,Sister,Purple Helebore Flower card
20th Birthday,Sister,Purple Helebore Flower card
Happy Birthday,Sister, Mexican Celebration card
Sister 101st Birthday Traditional card
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