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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
“I haven't been disappointed with all my card orders...plus a lot of fun to create!”
Mabel - Las Vegas, Nevada - Nov 3rd, 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: 4,861 Pages: 163
Most Popular Newest Show adult cards
Sister Birthday Card, Butterfly, Flowers card
For Sister Purple Spring Blossoms Birthday card
Happy Birthday, to sister,two black cats silhouett…
Sister, a Birthday card for a cookie lover card
55th birthday for sister, with a stitched flower c…
Add a picture Sister age 78 with pink rose and jew…
Birthday Card For Sister Who Is Smart With Young C…
To a great sister, happy birthday, cake & candle c…
To my sister happy birthday magnolia tulip tree ca…
For Sister on 50th Birthday Custom Scawgill Bridge…
For Sister on Birthday Rydal Mount Garden England …
Sister 26th Birthday Green Flowers card
Yellow Flowers Sister’s Birthday Card
Dear Sister Happy Birthday! card
Sister 7th Birthday Glittery Effect Butterflies an…
Happy Birthday to a Special Sister Fairy and Flowe…
Sister Birthday Beautiful Purple Coneflower card
Purple Flowers Sister Birthday Card
Blue Watercolor Flowers Sister Birthday Card
Sister 2nd Birthday Cute Girl with Animal Friends …
Little Sister 4th Birthday Cute Girl with Animal F…
Sister’s Birthday-old rag doll and teddy bear hugg…
Mixed Flowers in a Garden - Happy Birthday Sister …
Funny Retro Birthday Sister You’re Not Old You’re …
Sister Happy Birthday Primroses Blue and Yellow ca…
Cupcakes and Ribbon Happy Birthday Sister card
Sister Birthday Happy Flowers! card
Birthday, Sister, Great Egret at a Pond card
Sister 42nd Birthday White Flowers card
Sister 8th Birthday Teddy Bear Princess card
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