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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 recently had an appointment with my doctor. She was tearful during the exam. The office help noticed and I chimed in. She began telling her story to me and I sent this card to cheer her up. I liked the inside message and front picture. I felt so happy. I was able to send this card to cheer her up a bit. She was going through a rough time personally. The card fit the situation. Paul Safran”
Paul - Camarillo, Ca. - 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: 4,861 Pages: 163
Most Popular Newest Show adult cards
Sister’s 14th Birthday Anime Gamer Girl card
Happy 94th Birthday for a Sister, Rudbeckia flower…
Sister Flamazing Birthday Whimsical Flamingo card
93rd Happy Birthday Sister, Magnolia Blossom card
Funny Only Gift You Need Sister Birthday card
Birthday, Sister, White Parrot card
Enchanting Birthday,Sister, Butterflies, Flowers, …
Happy 16th Birthday to My Sister Party Cake card
For a Sweet Sister on Her 19th Birthday, Starfish …
Hey Sister, its Your 21st Birthday, Sea Shells and…
For A Dear Sister, Birthday, Pink Butterflies Flor…
Sister, Happy Birthday, Bike with Flowers card
Sister’s Birthday-close up of a white daisy card
57th Happy Birthday Sister, Magnolia Blossom card
Thinking of you sister, birthday - border collie d…
Birthday Heart of Flowers for a Sweet Sister on he…
Hand Lettered Birthday Sister January Monthly Flow…
Happy 46th Birthday to a Special Sister, Orange fl…
Birthday Heart of Flowers for a Sweet Sister on he…
Hand Lettered Birthday Monthly Flower for Sister J…
Happy 43rd Birthday to a Special Sister, Orange fl…
46th birthday for sister, pearls and petals card
Happy Birthday Sister Roses card
Sis, Happy Birthday!, Black Digital Diamond with A…
Sister, Happy Birthday, Psychedelic Garden card
Sister, Happy Birthday! Colorful Flower Garden car…
Blue Flowers Sister’s Birthday Card
For Sister on Birthday Portsmouth Harbor Landscape…
Happy birthday to my sister, orange butterflies an…
Sister 22nd Birthday Green Flowers card
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