The best knock-knock jokes

Knock Knock! Who's there? Justin Justin who? Justin time for dinner!
Vote: has 61.91 % from 70 votes. Send joke:

More jokes about: kids, knock-knock
"Have you heard my knock-knock joke?" asked the blonde. "No," said the brunette. "Okay," said the blonde, "you start."
Vote: has 61.63 % from 23 votes. Send joke:

More jokes about: blonde, knock-knock, stupid
Fan: "I see you won a silver medal at the Olympics. What's it for?¨" Athlete: "It's for telling knock knock jokes." Fan: "And what's that gold medal for?" Athlete: "For stopping."
Vote: has 61.37 % from 51 votes. Send joke:

More jokes about: athlete, knock-knock
Chuck Norris was once part of a knock knock joke. The Joke ended abruptly when after the first knock the door blew up killing the man behind it.
Vote: has 60.15 % from 22 votes. Send joke:

More jokes about: Chuck Norris, death, knock-knock
Knock, Knock! Who's there? D umbbell. Dumbbell who? Dumbbell doesn't work so I had to knock!
Vote: has 57.55 % from 32 votes. Send joke:

More jokes about: knock-knock
Knock Knock. Who's There? Justin. Justin who? Your justin time to wipe my ass!
Vote: has 55.87 % from 36 votes. Send joke:

More jokes about: dirty, knock-knock, sex
Knock, Knock! Who's there? Doctor Doctor who? That's a great TV show, isn't it?
Vote: has 46.70 % from 20 votes. Send joke:

More jokes about: doctor, knock-knock