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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 (186,367)
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Shopper Testimonials
“I love giving personalized greeting cards. Buying them this way is convenient. I don’t have to hunt the stores to get exactly what I want.”
Ruth - Jun 2nd, 2025
“They arrived quickly and as I wanted. I am very very pleased.”
Berton - Jun 1st, 2025
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Cards per Page:
Cards: 614 Pages: 21
Most Popular Newest Show adult cards
21st Birthday All Things Sporty card
21ST Birthday Party Invitation - Purple Brocade ca…
Happy Bee-Day - 21 - Sunflower and Bee card
Happy 21st Birthday with red balloon and puzzle gr…
Happy 21st Birthday Space Rocket Ship card
Happy 21st Birthday with orange balloon and puzzle…
Happy 21st birthday! : halftone wine bottle and gl…
Happy 21st Birthday Wine Bottle and Glasses card
Happy 21st Birthday, Eye Chart card
Happy 21st Birthday Abstract Concept Hot Rod Truck…
21 and Terrific Pink Twenty One Black Background f…
Happy 21st Birthday Abstract Concept Red Muscle Ca…
21st Birthday, Raccoons with present card
21st Birthday, Raccoon Portrait in fancy frame on …
Happy 21st Birthday Concept Nostalgic American Pic…
Happy 21st Birthday Abstract Concept Muscle Car ca…
Happy 21st Birthday Concept Sports Muscle Car card
Happy birthday, cupcake, 21 card
Happy 21st Birthday with Watercolor Blue Hydrangea…
Happy 21st Birthday - Orange Poppies Garden card
21 and Terrific Stars Red White Blue For Him card
Happy birthday paper greeting card 21 card
Happy 21st Birthday Off Road Buggy Adventure card
Sing and Dance, 21 card
Happy 21st Birthday - Warm Tone Fields and Purple …
Happy 21st Birthday Striking Bold High Contrast Mo…
30th Birthday card
Happy 21st Birthday - Red Tulips card
Happy 21st Birthday, cupcake card
Happy Birthday to an Exceptional 21 Year Old! card
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