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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
“Have been using for several years. Loaded all holidays, anniversaries, and birthdays into reminders. I use that feature to go in every other month and order direct mailed 2 months out. Love the selection, messages, and picture upload feature. Everything is a huge timesaver. Using the ship date request function can be tricky”
Richard - Oct 27th, 2026
“Have been buying these great cards for years! Have always loved the great selection and ability to edit inside text, but recently I’ve gotten adventurous and added a photo to the left-hand side of the card. Talk about personalization! Can’t beat the price either. So to me, there is no other way to buy a greeting card.”
Jane - Stratford, Connecticut - Oct 28th, 2026
Cards per Page:
Cards: 4,835 Pages: 162
Most Popular Newest Show adult cards
Fiftieth Birthday Card Cartoon Bear My Sister’s Go…
Sister 75th Birthday Pink Teacup with Lily of the …
Happy Birthday Sister Horse in Sunset card
Happy 60th Birthday to a Special Sister, Orange fl…
Funny Wine Birthday for Sister Toasting Wine Glass…
White Daisy Pastel Flower Art Personalized Birthda…
Sixty Eighth Birthday Card Cartoon Bear My Sister’…
For Sister 70th Birthday Yellow Watercolour Roses …
Humorous Sister Birthday Even If You Weren’t My On…
Hold My Breath Happy Birthday for Sister card
Happy 65th Birthday to a Special Sister, Orange fl…
Red and Yellow Tulip Pastel Art Custom Birthday fo…
Sister 60th Birthday White Flowers card
Happy Birthday to Sister Cupcake Lights on String …
Happy August Birthday Sister Orange Poppy Flower W…
Happy Birthday Sis Floral Cake card
Sixty Fourth Birthday Card Cartoon Bear My Sister’…
Happy Birthday Little Sister, Miles Apart, Country…
Happy Birthday, Sister, 2 Tier Cake with Candles a…
Happy 80th Birthday to a Special Sister, Orange fl…
Happy Birthday Sister card
75th Birthday, Sister, with Magnolia card
Happy Birthday - Sister - Dirty Old Shoes card
Sixty First Birthday Card Cartoon Bear My Sister’s…
Happy Birthday Sis or Custom Relationship Watercol…
Birthday Heart of Flowers for a Sweet Sister on he…
Happy birthday to twin sister, Cat hugging yarn ba…
Birthday, Sister, Shop ’til you Drop, Relax and Un…
Best Sister Ever Birthday, with Flowers card
For Sister Birthday with Psalm 37 4 Scripture in P…
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