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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 (191,703)
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Shopper Testimonials
“Love these cards. They look great and arrive in perfect condition and very fast!”
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: 4,861 Pages: 163
Most Popular Newest Show adult cards
Sister Happy Birthday cute fairy on a floral swing…
Happy Birthday to a Wonderful Sister Poinsettias H…
Happy Birthday, Sister, Monarch Butterfly on a Yel…
Hand Lettered Birthday Sister Monthly Flower Cake …
For Sister Custom Age Birthday Gnomes with Bunting…
Happy Birthday Sister with Pretty Floral Border Pi…
Sister Birthday Wishes Delicate Flowers and Butter…
Happy Birthday to a Wonderful Little Sister, Peach…
Sister Happy August Birthday Purple Poppy card
Happy Birthday Sis, Bright Tropical Flowers on pol…
Sister 3rd Birthday Cute Girl with Animal Friends …
Chalkboard Watercolor Purple Roses Sister Birthday…
Happy 90th Birthday Sister with Typewriter, Chicka…
Big Sister 5th Birthday Cute Girl with Animal Frie…
Happy Birthday To The Best Sister In The World Yel…
Birthday SISTER Polar Bear Family From All of Us c…
Happy Birthday Sister card
Happy Birthday Sister - Kitty Cat - Birthday Cake …
Teen essentials - birthday sister card
56th birthday for sister, pearls and petals card
Happy birthday flower - sister card
Happy Birthday Sister Red Flower Floral Botanical …
Birthday, Sister, Lilac Daylily Flower and Butterf…
Chalkboard Birthday Amazing Sister card
Sister 60th Birthday Wildflowers Mason Jar Celebra…
Sister 44th Birthday White Flowers card
Sister’s 24th Birthday Trendy Bling Turquoise Dres…
Big Sister, Happy Birthday!, Pink Poseys in Frame …
Sister 9th Birthday Sports Balls card
Birthday for Sister- Love Fairy card
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