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21st Birthday Cards

Drink ... drank ... drunk? Not too much, we hope. Send a 21st Birthday Card to someone who has hit that milestone like a boss and is ready to celebrate. Choose from 790+ exceptional designs, add your personal message, and we'll mail it next business day. Throwing a party? No worries. We have 21st Birthday Party Invitations, too. Yeah, 'cause we're cool like that.

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Birthday (186,471)
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Shopper Testimonials
“Very attractive cards with appropriate messages inside. I am very pleased with these cards.”
Mary Agnes - Jul 30th, 2025
“Beautiful and perfect Saint Monica greeting card.”
Bethany - Jul 28th, 2025
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Cards per Page:
Cards: 615 Pages: 21
Most Popular Newest Show adult cards
Thousand kisses 21st Birthday card
Happy 21st birthday, red heart on yellow backgroun…
21st Birthday Blond Burning up the Road card
21st Birthday Crafted Look card
Happy 21st Birthday card
Happy 21st Birthday Card
21st Birthday card, Flowers and Pearls card
21st Birthday, with Magnolia card
Humorous - your 21st Birthday -Holy Moly- twenty-f…
21st Birthday, Frog Jokes card
21st Birthday card for a cookie lover card
21st Birthday Bingo card
21st birthday with stars in red and yellow card
21st Birthday Card Red Floral card
21st Birthday Abstract Flowers card
Happy 21st Birthday Frozen in Disbelief Jack Frost…
21st Birthday Bright Cake Cupcakes Party Hats Ball…
Martini with extra olives for a 21st birthday card
21st Birthday, Motorbike on Beach card
Fishing Boat 21st Birthday Card
21 Yrs, Happy Birthday, Styling in Black and White…
21st Birthday White Rose card
21st Birthday card
Funny 21st Birthday Card
Happy 21st Birthday with Toads card
Rainbow birthday - 21 card
21st Birthday Cheers To 147 Dog Years card
21st Birthday Red Wine, Turning 21, Wine Funny 21s…
Happy 21st Birthday Party Cake card
21st Birthday with Painting of a Skier card
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