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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 (187,754)
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Shopper Testimonials
“Graphics and French language are nice. Can't find French language cards in stores.”
Jean - Sep 20th, 2025
“Perfect for grandson's 20th birthday. Quick delivery of order. As usual, most pleased with your company and service.”
Geraldine Broglio - Sep 18th, 2025
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Cards per Page:
Cards: 620 Pages: 21
Most Popular Newest Show adult cards
Happy 21st Birthday Yorkie in a Party Hat Humor ca…
Happy 21st Birthday Beer Humor card
21st Birthday Cake Male Candles and Stars Distress…
21st Birthday Bright Cake with Candles card
Sleek 21 card
21st Birthday You Have Achieve Legal Status Let’s …
Keep Calm You’re Only 21 Birthday card
21st Birthday Religious Blessings Red and Black Sw…
21 Years Happy Birthday Animal Pattern Balloon Leo…
Happy Birthday Humor Cat Thinks 21 is Old card
21st Birthday Cheers in Red White and Black Patter…
Happy 21st Birthday Custom Name Card Flower Illust…
21 Years Old Birthday Math Hamster card
Pretty Floral Custom Front 21st Birthday for Her c…
21st Happy Birthday Card - Purple and Black Swirls…
Ducks Singing Happy 21st Birthday To You, Happy Bi…
21st Birthday Evergreen Pines and Deer Nature Them…
Happy 21st Birthday, You’re Going to Rock 21 card
21st Birthday Colorful Floating Balloons With Star…
21 Years Old Holy Shitake Happy Birthday card
Happy 21st Birthday with Typewriter, Chickadee Bir…
Humorous 21st Birthday Card With Wizard Casting A …
21st Happy Birthday Milestone card
21st Birthday Photo Craft Look card
21 Years Old Happy Birthday Space Pug card
Birthday for 21 Year Old, Vivid Rainbow Balloon wi…
21 Years Old Happy Birthday Piglet with Cupcake ca…
21 Years Old Hippie Birthday Monkey card
21 Years Old Pug and Chihuahua Cupcakes Birthday c…
21 Years Old Happy Birthday Yeti with Birthday Cak…
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