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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
“I have given the GCU name to more than a few of people to whom I have sent your cards. I should be getting a commission for the business I send your way. EVERYONE loves your cards.”
Kathleen - Masonic Home, Kentucky - Nov 2nd, 2026
Cards per Page:
Cards: 4,861 Pages: 163
Most Popular Newest Show adult cards
Sister’s Birthday pink roses in brown paper bag ca…
Sister Birthday Puppy Dog card
Happy Birthday to Sister Chalkboard Effect Pretty …
Twin Sister’s Birthday, flip flops on clothesline …
Blue Watercolor Flowers Sister 50th Birthday card
Happy Birthday,to my sister,sad black and white ho…
Pink Watercolor Flowers Rustic Wood Sister Birthda…
Sister Birthday, Seaside Scene card
61st Birthday for Sister, Pearls and Petals card
62nd Birthday for Sister, Pearls and Petals card
Sister 20th Birthday Blue Crescent Moon and Stars …
Purple Flowers Sister Birthday Card
103rd birthday for sister, with a stitched flower …
Happy Birthday to Sister African American Girl on …
50th Birthday,Sister,Purple Helebore Flower card
Sister Birthday card
28th Birthday, Sister, Pink Rose card
On Your Birthday, Sister, pretty blue butterflies …
Sister / Happy Birthday - Black and White Flourish…
Happy 35th Birthday Sister Garden Bouquet card
Happy 95th Birthday for a Sister, Rudbeckia flower…
Happy Birthday to a Wonderful Sister, Orange flowe…
5th Birthday Card for Sister colored balloons card
Birthday - SISTER - Cottage Garden - Tea For Two -…
Sister Pansies with Blue and Purple Tones Blended …
18th Happy Birthday Sister, Magnolia Blossom card
Happy 40th Birthday to a Wonderful Little Sister, …
Birthday Heart of Flowers for a Sweet Sister on he…
Hey Sister, its Your 47th Birthday, Sea Shells and…
Happy Birthday for Sister, Lion and Lamb, Bubbly c…
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