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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
“Cards were exactly what I ordered. The personalization was perfect. Will definitely buy again.”
Christine - Nov 2nd, 2026
“I absolutely love Greeting Card Universe! It is so much fun being able to create the text of the cards you are buying. Price is another bonus, their cards are so reasonable. Also, Customer Service is outstanding and work with you perfectly. I recommend this business 100%”
Karen - Nov 1st, 2026
Cards per Page:
Cards: 4,835 Pages: 162
Most Popular Newest Show adult cards
Birthday, Sister, Feminine Purple Swirls, Flowers …
Happy 67th Birthday, Sister, Monarch Butterfly car…
Happy Birthday Sister - Fuchsia & Black Flower car…
For Sister on Birthday Watercolor Yellow Daffodils…
Big Sister Happy Birthday Pretty Princess with Pre…
Birthday Heart of Flowers for a Sweet Sister on he…
Happy Birthday -Sister card
Exotic flowers in a vase - Sister Birthday card
Happy 21st Birthday to My Sister Party Cake card
Cute Birthday Card Sisters Are Different Flowers F…
Happy Birthday,to my sister,sad black and white ho…
72nd Birthday for Sister, Pearls and Petals card
Add a picture, sister birthday with pink rose and …
Cute Birthday For Sister Cartoon Watermelon Slice …
Birthday Heart of Flowers for a Sweet Sister on he…
Happy birthday sister watercolor cat blue eye card
Personalized Birthday for Relative Sister Cardinal…
Sister, 61st, Happy Birthday, Mason Jar, Flowers, …
Best Sister Ever 17th Birthday Typography in Pink …
Happy 78th Birthday or a Stunning Sister, Purple A…
Ice cream Sundae Birthday card for sister. Can cus…
Birthday - Sister - Diamond Shapes with Patterns c…
Sister 85th Birthday Pink Teacup with Lily of the …
A Big Birthday Wish for a Twin Sister, Butterfly i…
65th birthday for sister, with a stitched flower c…
Little Hummingbird Birthday Wish For Sister card
Sister Birthday Always My Sister Forever My Friend…
Happy Birthday to my sweet Sister - Cute Mouse blo…
Happy 60th Birthday Sister Purple Flowers card
Happy Birthday Again, Little Sister, Hawaii Ocean …
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