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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
“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
“I like that I can have a theme for Christmas this year snowmen (or snowpersons) last year it was trees. Can't remember the other years. Thank you for making it so easy to order.”
Phyllis - Nov 4th, 2026
Cards per Page:
Cards: 4,835 Pages: 162
Most Popular Newest Show adult cards
Happy 46th Birthday Sister with Typewriter, Chicka…
Happy 91st Birthday or a Stunning Sister, Purple A…
3rd Birthday Big Sister Unicorn Sitting On Rainbow…
Happy 32nd Birthday to a Special Sister, Orange fl…
17th Birthday for a Special Sister, Magnolia Bloss…
5th Birthday Big Sister Unicorn Sitting On Rainbow…
Happy 31st Birthday to a Special Sister, Orange fl…
Best Sister Ever 108th Birthday Typography in Pink…
Best Sister Ever 109th Birthday Typography in Pink…
Happy 51st Birthday Sister with Typewriter, Chicka…
Birthday for Sister Red Watercolor Poppies card
Happy 78th Birthday for a Sister, Rudbeckia flower…
Or Sister Birthday with Mermaids and Fishes card
Birthday Heart of Flowers for a Sweet Sister on he…
For a Sweet Sister on Her 32nd Birthday, Starfish …
Happy 54th Birthday Sister with Typewriter, Chicka…
Happy 27th Birthday to a Special Sister, Orange fl…
Happy 38th Birthday to a Wonderful Little Sister, …
Happy Birthday Sister, Baby Geese card
15th Happy Birthday Sister, Magnolia Blossom card
Sister Happy Birthday with Candles and Cupcakes Si…
Big Sister, Happy Birthday, Butterfly on Brown eye…
Happy 44th Birthday, Sister, Monarch Butterfly car…
Happy Birthday,Sister ,Monarch Butterfly card
For a Sweet Sister on Her 29th Birthday, Starfish …
Sister Happy June Birthday Roses and Lemons Cake c…
Happy 61st Birthday Sister with Typewriter, Chicka…
Happy 20th Birthday to a Special Sister, Orange fl…
Happy 19th Birthday to a Special Sister, Orange fl…
Sister Birthday Cute and Colorful Lion Artwork car…
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