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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
“Cards were exactly what I ordered. The personalization was perfect. Will definitely buy again.”
Christine - Nov 2nd, 2026
Cards per Page:
Cards: 4,840 Pages: 162
Most Popular Newest Show adult cards
Happy Birthday, Sister, Vintage, Lady Slipper card
Happy Birthday Sister Autumn Bird Branch Fall Tree…
Happy 40th Birthday Sister Garden Flowers card
45th Birthday for Sister White Flowers card
Birthday Heart of Flowers for a Sweet Sister on he…
Sister’s 16th Birthday Anime Gamer Girl card
Birthday for sister, florals in yellow and black c…
Happy Birthday Sister Lone Black Bird Tree Limbs C…
Sister Birthday Ballerinas card
Birthday Card With Floral Abstract/For Sister card
Sister 25th Birthday Green Flowers card
Happy Birthday Sister Art Nouveau Flowers Floral B…
Happy 53rd Birthday for a Sister, Rudbeckia flower…
Happy 101st Birthday or a Stunning Sister, Purple …
Sister 28th Birthday Green Flowers card
Sister 29th Birthday Green Flowers card
4th Birthday for a Little Sister Kitten with Glass…
Sister 20th Birthday with Crown and Gold Look Dots…
Sister Happy June Birthday Pastel Roses June Birth…
Happy 16th Birthday to a Wonderful Little Sister, …
Happy 28th Birthday, Sister, Monarch Butterfly car…
Sister Birthday Roses card
Hot Air Balloon Birthday Sister card
2nd Birthday for a Little Sister Kitten with Glass…
Happy 16th Birthday For My Twin Sister, Monarch Bu…
Fashion Argyle - birthday sister card
Happy Birthday Little Sister Doodled Flowers & Bee…
Big Sister 3rd Birthday Glittery Effect Butterflie…
Sister 50th Birthday Blue Crescent Moon and Stars …
Big Sister 4th Birthday Glittery Effect Butterflie…
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