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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
“We would be lost without Greeting Card Universe. What other greeting card company has endless selections, the added bonus of personalization and prices that cannot be beat. We highly recommend Greeting Card Universe to all those who are frustrated with the limited greeting card selections in brick-and-mortar stores.”
Kathryn - Nov 3rd, 2026
“My dentist will love his thank you card. This is a colorful and beautiful card. It has the most meaningful words to let him know how much I appreciate him for all his help and care which has truly made a difference in my life.”
Ruby - Nov 3rd, 2026
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Cards per Page:
Cards: 4,835 Pages: 162
Most Popular Newest Show adult cards
Favorite Sister Birthday, Pink Teacup with Lily of…
Happy 74th Birthday, Sister, Monarch Butterfly car…
For Sister 85th Birthday Yellow Watercolour Roses …
Birthday, Sister, Soft Pink Green Floral card
Birthday to Sister Card with Wild Horses on a Beac…
Sister Birthday Humor Wine Bottle and Glasses on A…
Birthday Card For A Younger Sister With Cute Stick…
Sister Birthday Purple Floral Rose and Greenery Da…
Birthday, Sister Dainty Pink Cone Flower Isolated …
Custom Name Birthday for Sister from Brother card
Happy 90th Birthday to a Special Sister, Orange fl…
Sister, Birthday Greeting Card, On My Window Sill’…
Happy Birthday to Sister Beautiful Red and White R…
80th Birthday,Sister,Purple Helebore Flower card
Sister Birthday with Cherry Blossoms card
Only Sister, Happy Birthday, Psychedelic Garden ca…
Happy 85th Birthday to a Special Sister, Orange fl…
50th Happy Birthday Sister, Magnolia Blossom card
Birthday, Sister, Brown and White Horse card
Sister March Birthday Yellow Daffodils on Aquamari…
Happy Birthday Sister Pretty Red Daisies and Swirl…
Happy Birthday for Little Sister - Purple Butterfl…
Sister, 64th, Happy Birthday, Mason Jar, Flowers, …
Sister Birthday - Go All Out card
Happy Birthday Again, Big Sister, Hawaii Ocean Sun…
Happy Birthday Sister Flowers & Animals Watercolor…
Humorous Birthday Card For Twin Sister Being Born …
Birthday Heart of Flowers for a Sweet Sister on he…
Happy birthday sister, Pink Bird card
Happy 75th Birthday or a Stunning Sister, Purple A…
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