100 Knock Knock Jokes for Parents to Enjoy With Kids

The knock-knock joke format is about 90 years old. It appeared in print as early as 1936, spread through American playgrounds faster than any adult could track, and somehow never left. There's a reason - the setup is a social contract.

You say "knock knock," the other person has agreed to say "who's there," and the whole transaction is a small act of play between two people. Kids understand this instinctively before they can explain it.

These 100 knock-knock jokes for kids range from genuinely silly ones for very young children to wordplay-heavy ones that take a second to land. The funnier the groan at the end, the better the joke.

Easy Knock Knock Jokes for Little Kids

• Knock knock. Who's there? Cow says. Cow says who? No, silly, cow says MOO!
• Knock knock. Who's there? Boo. Boo who? Don't cry, it's just a knock-knock joke!
• Knock knock. Who's there? Lettuce. Lettuce who? Let's go in, it's freezing out here!
• Knock knock. Who's there? Tank. Tank who? You're welcome!
• Knock knock. Who's there? Atch. Atch who? Bless you! Are you feeling okay?
• Knock knock. Who's there? Banana. Banana who?
• Knock knock. Who's there? Banana. Banana who?
• Knock knock. Who's there? Orange. Orange who? Orange, you glad I didn't say banana?
• Knock knock. Who's there? Ice cream. Ice cream who? ICE CREAM so loud the neighbors heard me!
• Knock knock. Who's there? A little old lady. A little old lady who? I didn't know you could yodel!
• Knock knock. Who's there? Nanna.Nanna who? Nanna, your business!
• Knock knock. Who's there? Woo. Woo who? Don't get so excited, it's just a knock-knock joke.

Animal Knock Knock Jokes

• Knock knock. Who's there? Cow. Cow who? Cows don't say who - they say moo!
• Knock knock. Who's there? Owl. Owl who? Owl will always love you!
• Knock knock. Who's there? Bee. Bee who? Be yourself; everyone else is taken.
• Knock knock. Who's there? Duck. Duck who? Just duck - there's something flying at your head!
• Knock knock. Who's there? Fish. Fish who? Fish you a Merry Christmas!
• Knock knock. Who's there? Frog. Frog who? Frog-ot my key again, can you let me in?
• Knock knock. Who's there? Interrupting cow. Interrupting cow wh- MOO!
• Knock knock. Who's there? Cat. Cat who? Cat you please open the door?
• Knock knock. Who's there? Horse. Horse who? Horse-ly recognized you without your hat!
• Knock knock. Who's there? Gorilla. Gorilla who? Gorilla me a sandwich, I'm starving!
• Knock knock. Who's there? Shark. Shark who? Shark-asm is not the best humor, but here we are.

Food Knock Knock Jokes

• Knock knock. Who's there? Lettuce. Lettuce who? Lettuce in, we brought pizza!
• Knock knock. Who's there? Ketchup. Ketchup who? Ketchup with me and I'll tell you!
• Knock knock. Who's there? Olive. Olive who? Olive, you and I miss you!
• Knock knock. Who's there? Pear.Pear who?Pear-haps you should open the door and find out.
• Knock knock. Who's there? Candy.Candy who ? Candy cow jump over the moon? Apparently yes.
• Knock knock. Who's there ? Donut.Donut who? Donut ask me, I have no idea!
• Knock knock . Who's there? Cheese.Cheese who?Cheese a really good friend of mine.
• Knock knoc k. Who's the re? Butter.Butter who?Butter, let me in before I melt!
• Knock knock. Who's there ? Pasta.Pasta who?Pasta, the salt, please!
• Knock knock. Who's there ? Broccoli. Broccoli who? Broccoli doesn't have a last name, silly.

Wordplay Knock Knock Jokes

• Knock knock. Who's there? Nobel.Nobel who? Nobel, that's why I knocked.
• Knock knock. Who's there? Europe.Europe who? No, YOU'RE a poo!
• Knock knock. Who's there? Wooden shoe.Wooden shoe who? Wooden sho,e like to hear another joke?
• Knock knoc k. Who's there? Says.Says who?Says me, that's who!
• Knock knock. Who's there? Dishes.Dishes who?Dishes the police! Open up!
• Knock knock. Who's there ? Canoe.Canoe who? Canoe help me with my homework?
• Knock knoc k. Who's there? Spell. Spell who? W-H-O.
• Knock knock. Who's there? Avenue.Avenue who? Avenue knocked on this door before?
• Knock knock. Who's there? Icy.Icy who?Icy you looking through the peephole!
• Knock knock. Who's there? Iowa. Iowa who? Iowa you a big apology!
• Knock knock. Who's there? Cash.Cash who? No thanks, I prefer almonds.
• Knock knock. Who's there? Needle.Needle who? Needle little help getting in the door!
• Knock knock. Who's there? Alpaca.Alpaca who? A lpaca the suitcase, you get the tickets!
• Knock knock. Who's there ? Mikey.Mikey who? Mikey doesn't fit in the lock — can you let me in?

The knock knock format is essentially a language game - setup and subverted expectation. The brand-new sentences that sound fake but apparently everyone has heard takes that same logic somewhere stranger. And the 20 funniest internet one-liners shows what the format looks like when adults try it without the structure.

Festive and Seasonal Knock Knock Jokes

• Knock knock. Who's there? Doughnut.Doughnut who?Doughnut open until Christmas!
• Knock knock.Who's there?Snow.Snow who?Snow use - I forgot the password again.
• Knock knock.Who's there?Rabbit.Rabbit who?Rabbit up carefully, it's a present!
• Knock knock.Who's there?Holly.Holly who?Holly-days are here again!
• Knock knock.Who's there?Ho ho.Ho ho who?Your Santa impression needs some work!
• Knock knock.Who's there?Mary.Mary who?Mary Christmas and a Happy New Year!
• Knock knock.Who's there?Witch.Witch who?Witch one of you took my broomstick?

Silly and Random Knock Knock Jokes

• Knock knock. Who's there? A broken pencil.A broken pencil, who? Never mind — it's pointless.
• Knock knoc k. Who's there? Interrupting pirate.Interrupting pirate wh—ARRR!
• Knock knock. Who's there ? Owls go. Owls go wh o? Yes, they do.
• Knock knock. Who's there? Hike.Hike who? I didn't know you wrote poetry!
• Knock knock. Who's there?Déjà.Déjà who? Knock knock.
• Knock knock. Who's ther e?Ash.Ash who? Bless you again — you okay?
• Knock knock. Who's there? Cows go. Cows go who?N o, cows go MOO. Owls go who.
• Knock knock. Who's there? Stopwatch.Stopwatch who? Stopwatch, you're doing and let me in!
• Knock knock. Who's there? Doctor.Doctor who?Yes, exactly.
• Knock knock. Who's there ? Armageddon.Armageddon who? Armageddon a little bored - want to hear another one?
• Knock knoc k. Who's there? Robin.Robin who?Robin, you - now hand over the snacks.
• Knock knock. Who's there? Smell mop. Smell mop who?...No thank you.

The best Yahoo Answers questions before the platform shut down permanently include several that follow exactly the knock-knock structure - a setup that seems reasonable, a punchline nobody expected, and a comment section that made it better.