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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
“My dentist will love his thank you card. This is a colorful and beautiful card. It has the most meaningful words to let him know how much I appreciate him for all his help and care which has truly made a difference in my life.”
Ruby - Nov 3rd, 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: 4,861 Pages: 163
Most Popular Newest Show adult cards
Happy Birthday Sister card
Sister’s Birthday Primitive Raggedy Doll with Cat …
Happy 35th Birthday for a Sister, Rudbeckia flower…
Sister Happy Birthday with Pretty Unicorn and Flow…
For a Sweet Sister on Her 38th Birthday, Starfish …
Happy Birthday to African American Twin Sister Lad…
Happy 84th Birthday, Sister, Monarch Butterfly car…
Happy Birthday Wishes,for my sister, Peach Orchids…
Birthday Sister Cute Cats and Colorful Yarnballs W…
Happy 83rd Birthday to a Special Sister, Orange fl…
Happy 26th Birthday to a Special Sister, Orange fl…
Hey Sister, its Your 46th Birthday, Sea Shells and…
Happy Birthday Sister - Art Nouveau Dinesh Bird ca…
Happy 43rd Birthday, Sister, Monarch Butterfly car…
Happy 42nd Birthday, Sister, Monarch Butterfly car…
Happy 98th Birthday to a Special Sister, Orange fl…
Sister Happy Birthday To Do List Paper Wheels card
Happy 68th Birthday or a Stunning Sister, Purple A…
Birthday Heart of Flowers for a Sweet Sister on he…
Happy 13th Birthday for a Sister, Rudbeckia flower…
Happy 57th Birthday or a Stunning Sister, Purple A…
Peacock-Birthday for sister card
For a Sweet Sister on Her 21st Birthday, Starfish …
Birthday Heart of Flowers for a Sweet Sister on he…
Birthday Heart of Flowers for a Sweet Sister on he…
Happy Birthday to a Wonderful Sister, Peach rose G…
Sister Happy April Birthday with Bluebird and Dais…
Birthday from Big Brother to Pre-teen Sister Cute …
Happy 47th Birthday or a Stunning Sister, Purple A…
Sister Birthday Flowers Peace Love card
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