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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 (191,682)
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Shopper Testimonials
“Great quality and excellent packaging to protect the delivery. I also love your wide selection of cards. I will be back!”
Susan - Nov 1st, 2026
“Greeting Card Universe is my go to for all my cards. They have a great selection for all occasions. I just got my sister a lovely birthday card for her 75th birthday and I like that I was able to edit the inside with my own personalized message. Good quality, always great and never lets me down.”
Nancy - Nov 2nd, 2026
Cards per Page:
Cards: 4,840 Pages: 162
Most Popular Newest Show adult cards
Sister 40th Birthday Green Flowers card
Happy Birthday ,For Big Sister, rabbit and cake. F…
Happy Birthday,Sister, Mexican Celebration card
Birthday, Sister, brown butterflies card
Sister Funny Vulture Birthday card
Happy Birthday to my Sister Floral Cut out card
Sister Happy Birthday Tree Silhouettes Reflected i…
Sister, Birthday, Grass and Butterflies card
Sister Birthday Scattered Flowers card
Add a picture,Sister age 100, with pink rose and j…
Sister, Birthday with a Purple Flower card
Happy Birthday Sister Dragonfly Abstract Flowers I…
Happy birthday for sister card
Sister, Birthday, A Big Pink Diamond card
Sister 48th Birthday White Flowers card
Sister 8th Birthday Sports Balls card
30th birthday for sister, pearls and petals card
Sister 55th Birthday White Flowers card
95th Birthday,Sister,Purple Helebore Flower card
Sister Green Frog Birthday With Hand Lettering And…
Sister Birthday Card - Exciting Party Time Floral …
Happy Birthday Twin Sister 16 Floral Wreath Wildfl…
Sister Birthday Giant Ice Cream card
Add a picture,Sister age 30, with pink rose and je…
Happy Birthday Sister Black Bird Tree Pink Blossom…
Little Alligator Girl-Birthday Sister card
Birthday for Sister -Millie Ann- Big Bones card
Red Haired and Freckled Birthday for Sister card
5th Birthday, Sister, Happy Dog, Party Hat card
6th Birthday, Sister, Happy Dog, Party Hat card
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