Need a knock knock joke you can tell right now? Start with Best Knock-Knock Jokes. Looking for something specific? There are sections for little kids, older kids, teens, adults, road trips, texting, work, food, animals, and a few very strange visitors at the end.
What Is a Knock Knock Joke?
It’s a short call-and-response joke. One person knocks, the other asks who’s there, and the first person answers with a word or name that sets up the punchline.
They’re easy to tell because the other person already knows their line: “Who’s there?”
How Do Knock Knock Jokes Work?
Knock knock.
Who’s there? Lettuce.
Lettuce who?
Lettuce in before dinner gets cold.
Lettuce sounds like “let us,” so the punchline finishes the sentence. That’s the classic version. But not every joke needs a sound-alike pun. Some rely on a situation, a character’s behavior, or plain timing, and you’ll find all of those below.
Best Knock-Knock Jokes
The classics. Sooner or later, everybody learns these.
1.
Knock knock.
Who’s there? Interrupting cow.
Interrupting cow w-
MOO!
(Cut in before they finish the question. That’s the whole joke.)
2.
Knock knock.
Who’s there? Little old lady.
Little old lady who?
I didn’t know you could yodel!
3.
Knock knock.
Who’s there? Tank.
Tank who?
You’re welcome!
4.
Knock knock.
Who’s there? Olive.
Olive who?
Olive you, so open the door already.
5.
Knock knock.
Who’s there? Atch.
Atch who?
Bless you!
6.
Knock knock.
Who’s there? Dozen.
Dozen who?
Dozen anybody have a spare key?
7.
Knock knock.
Who’s there? Ice cream.
Ice cream who?
Ice cream if you don’t let me in!
8.
Knock knock.
Who’s there? Harry.
Harry who?
Harry up! I’ve been standing here forever.
9.
Knock knock.
Who’s there? Nana.
Nana who?
Nana your business. Just open the door.
10.
Knock knock.
Who’s there? Neighbor.
Neighbor who?
The one still waiting for his ladder back.
11.
Knock knock.
Who’s there? Boo.
Boo who?
Don’t cry. It’s only a joke.
12.
Knock knock.
Who’s there? Orange.
Orange who?
Orange you going to open the door?
13.
Knock knock.
Who’s there? Lettuce.
Lettuce who?
Lettuce in. It’s cold out here!
14.
Knock knock.
Who’s there? Who.
Who who?
Careful. You’re starting to sound like an owl.
15.
Knock knock.
Who’s there? Isaac.
Isaac who?
Isaac to see you. Open the door!
16.
Knock knock.
Who’s there? Alpaca.
Alpaca who?
Alpaca the suitcase, you load the car.
17.
Knock knock.
Who’s there? Kanga.
Kanga who?
Actually, it’s kangaroo!
18.
Knock knock.
Who’s there? Hawaii.
Hawaii who?
I’m fine, Hawaii you?
Knock-Knock Jokes for Kids
Ages 3–5
Mostly simple, silly jokes with animals, food, and easy-to-picture situations.
19.
Knock knock.
Who’s there? Ghost.
Ghost who?
BOO! Did I get you?
20.
Knock knock.
Who’s there? Cow.
Cow who?
Moo-ve over! I need to get inside.
21.
Knock knock.
Who’s there? Robot.
Robot who?
Beep boop. Please repeat the question after I reboot.
22.
Knock knock.
Who’s there? Pig.
Pig who?
Oink oink! I smell pancakes!
23.
Knock knock.
Who’s there? Monkey.
Monkey who?
Monkey see, monkey knock! Now open the door.
24.
Knock knock.
Who’s there? Bear.
Bear who?
Bear with me. I’m still trying to find the doorknob.
25.
Knock knock.
Who’s there? Puppy.
Puppy who?
Puppy eyes aren’t going to work. You still have to open the door!
26.
Knock knock.
Who’s there? Dishes.
Dishes who?
Dishes a very bad joke!
27.
Knock knock.
Who’s there? Fish.
Fish who?
Glub glub. I can’t talk, I’m underwater.
28.
Knock knock.
Who’s there? Owl.
Owl who?
Owl be waiting right here until you open up!
Ages 6–8
The puns get a little trickier here.
29.
Knock knock.
Who’s there? Ketchup.
Ketchup who?
Ketchup with me! I started walking without you.
30.
Knock knock.
Who’s there? Pasta.
Pasta who?
Pasta salt! Dinner’s getting cold.
31.
Knock knock.
Who’s there? Canoe.
Canoe who?
Canoe open the door? My hands are full.
32.
Knock knock.
Who’s there? Snow.
Snow who?
Snow problem. I brought a shovel.
33.
Knock knock.
Who’s there? Police.
Police who?
Police open the door. It’s raining.
34.
Knock knock.
Who’s there? Nobel.
Nobel who?
No bell, that’s why I knocked!
35.
Knock knock.
Who’s there? Spell.
Spell who?
W-H-O.
36.
Knock knock.
Who’s there? Freeze.
Freeze who?
Freeze! This is a very cold conversation.
37.
Knock knock.
Who’s there? Ash.
Ash who?
Ash me nicely and I’ll tell you.
38.
Knock knock.
Who’s there? Peas.
Peas who?
Peas open the door. I brought snacks.
Ages 9–12
For kids who are ready for slightly trickier wordplay.
39.
Knock knock.
Who’s there? Noah.
Noah who?
Noah good place to hide from my brother?
40.
Knock knock.
Who’s there? Mirror.
Mirror who?
Mirror, mirror on the wall, who forgot to do their homework?
41.
Knock knock.
Who’s there? Luke.
Luke who?
Luke through the peephole. I’m waving at you.
42.
Knock knock.
Who’s there? Science.
Science who?
Science says I should probably stop touching that button.
43.
Knock knock.
Who’s there? Justin.
Justin who?
Justin time for dinner.
44.
Knock knock.
Who’s there? Anita.
Anita who?
Anita pencil. Mine disappeared again.
45.
Knock knock.
Who’s there? Wanda.
Wanda who?
Wanda come outside? We’re playing basketball.
46.
Knock knock.
Who’s there? Deja.
Deja who?
Knock knock.
47.
Knock knock.
Who’s there? Alien.
Alien who?
Alien told me Earth pizza was good, so I came to investigate.
48.
Knock knock.
Who’s there? Alaska.
Alaska who?
Alaska again. Open the door!
Knock-Knock Jokes for Teens
These lean into texting, gaming, awkward replies, and everyday teen situations.
49.
Knock knock.
Who’s there? Wi-Fi.
Wi-Fi who?
Wi-Fi didn’t you tell me the password before I came over?
50.
Knock knock.
Who’s there? Group project.
Group project who?
Exactly. Nobody else showed up.
51.
Knock knock.
Who’s there? Seen.
Seen who?
Seen your message. Still deciding whether to reply.
52.
Knock knock.
Who’s there? Mute.
Mute who?
Mute your microphone! Everyone can hear you arguing with your brother.
53.
Knock knock.
Who’s there? Battery.
Battery who?
Battery low. Please plug me in before this joke dies.
54.
Knock knock.
Who’s there? Plot twist.
Plot twist who?
Plot twist: I was never outside.
55.
Knock knock.
Who’s there? Cringe.
Cringe who?
Honestly, this entire joke.
56.
Knock knock.
Who’s there? Ghosted.
Ghosted who?
Never mind. You probably won’t answer anyway.
57.
Knock knock.
Who’s there? Spoiler.
Spoiler who?
Spoiler alert: it’s the pizza guy. Act surprised.
58.
Knock knock.
Who’s there? Gaming.
Gaming who?
Gaming in. Give me ten seconds, I’m in the middle of a boss fight.
Knock-Knock Jokes for Adults
Coffee, Mondays, bills, and laundry. Nobody outgrows these. If you enjoy jokes with a darker edge, you can also check out our dark humor jokes collection.
59.
Knock knock.
Who’s there? Coffee.
Coffee who?
Coffee first. Then I’ll be a person.
60.
Knock knock.
Who’s there? Payday.
Payday who?
Payday is here! My money finally has somewhere to go.
61.
Knock knock.
Who’s there? Monday.
Monday who?
Monday already? I just finished recovering from Friday.
62.
Knock knock.
Who’s there? Bills.
Bills who?
Bills. Apparently they found my new address.
63.
Knock knock.
Who’s there? Mortgage.
Mortgage who?
Mortgage? I thought we agreed not to discuss that tonight.
64.
Knock knock.
Who’s there? Laundry.
Laundry who?
The pile you folded yesterday. It multiplied.
65.
Knock knock.
Who’s there? Sleep.
Sleep who?
Exactly. I haven’t seen enough of it lately.
66.
Knock knock.
Who’s there? Pajamas.
Pajamas who?
Pajamas on, because I’m not leaving the house tonight.
67.
Knock knock.
Who’s there? Weekend.
Weekend who?
Don’t say that too loudly. Monday might hear you.
68.
Knock knock.
Who’s there? Gym membership.
Gym membership who?
The one you haven’t used since January.
School & Classroom
Good for warm-ups, brain breaks, and the last five minutes before the bell.
69.
Knock knock.
Who’s there? Homework.
Homework who?
Homework. I heard you’ve been avoiding me.
70.
Knock knock.
Who’s there? Teacher.
Teacher who?
Teacher? I had a very good excuse for my homework, but I forgot it.
71.
Knock knock.
Who’s there? Principal.
Principal who?
Principal says the test is tomorrow. Suddenly everyone has somewhere else to be.
72.
Knock knock.
Who’s there? Pencil.
Pencil who?
Pencil me in for five minutes of studying.
73.
Knock knock.
Who’s there? Math.
Math who?
Math followed me home. I think it knows where I live.
74.
Knock knock.
Who’s there? Pop.
Pop who?
Pop quiz! Clear your desks.
75.
Knock knock.
Who’s there? Bell.
Bell who?
Bell rings in five seconds. Start packing!
76.
Knock knock.
Who’s there? Lunch.
Lunch who?
Lunch starts in five minutes. Suddenly I’m everyone’s best friend.
77.
Knock knock.
Who’s there? Dewey.
Dewey who?
Dewey have to do homework tonight?
78.
Knock knock.
Who’s there? Test.
Test who?
Test? Today? I thought that was next week!
Family & Road Trips
Save these for when “are we there yet?” starts. The knock doesn’t have to be on a door. It can be on a car window, a hotel room, or a tent.
79.
Knock knock.
Who’s there? Are we there yet?
Are we there yet who?
Are we there yet?
80.
Knock knock.
Who’s there? GPS.
GPS who?
GPS says turn left. Your dad says turn right. Good luck.
81.
Knock knock.
Who’s there? Detour.
Detour who?
Detour says we’re taking the scenic route. Again.
82.
Knock knock.
Who’s there? Map.
Map who?
Map says we’re lost, but at least it’s honest.
83.
Knock knock.
Who’s there? Snack.
Snack who?
Snack time. And yes, I already ate the emergency snacks.
84.
Knock knock.
Who’s there? Playlist.
Playlist who?
Playlist says we’re listening to the same song for the next three hours.
85.
Knock knock.
Who’s there? Traffic.
Traffic who?
Traffic. Twenty minutes, and we’ve moved one car length.
86.
Knock knock.
Who’s there? Carpool.
Carpool who?
Carpool karaoke starts when everyone stops arguing about the playlist.
87.
Knock knock.
Who’s there? Backseat.
Backseat who?
Backseat driver. You missed the exit.
88.
Knock knock.
Who’s there? Rest stop.
Rest stop who?
Rest stop? We’ve been driving for four hours. I’m not asking twice.
Birthdays & Parties
89.
Knock knock.
Who’s there? Party.
Party who?
Party’s here! You can stop pretending nobody’s home.
90.
Knock knock.
Who’s there? Present.
Present who?
Present! And yes, I came wrapped.
91.
Knock knock.
Who’s there? Surprise.
Surprise who?
Shh! Not yet. You’re ruining it.
92.
Knock knock.
Who’s there? Wooden.
Wooden who?
Wooden you like a slice of cake?
93.
Knock knock.
Who’s there? Confetti.
Confetti who?
Confetti everywhere. Sorry about the carpet.
94.
Knock knock.
Who’s there? Balloon.
Balloon who?
A very large balloon. I can’t fit through the doorway. Try turning sideways.
95.
Knock knock.
Who’s there? Late.
Late who?
Late for the party. Save me a slice.
96.
Knock knock.
Who’s there? Leftovers.
Leftovers who?
What’s left of the cake. Open up before someone finishes me.
Texting & Phones
Send the first three lines, wait for the replies, then drop the punchline.
97.
Knock knock.
Who’s there? Typing…
Typing… who?
…
(Wait five seconds. The delay is the punchline.)
98.
Knock knock.
Who’s there? Autocorrect.
Autocorrect who?
I meant to text “I’m outside,” not “I’m a giraffe.”
99.
Knock knock.
Who’s there? Read receipt.
Read receipt who?
Read receipt says you saw my message. Why are you ignoring me?
100.
Knock knock.
Who’s there? Password.
Password who?
Password required. And no, “password” isn’t the password.
101.
Knock knock.
Who’s there? Screenshot.
Screenshot who?
Screenshot this conversation before I delete it.
102.
Knock knock.
Who’s there? Airplane mode.
Airplane mode who?
Sorry, I can’t hear you. I’m at 30,000 feet.
103.
Knock knock.
Who’s there? Group chat.
Group chat who?
Everyone’s typing at once and nobody’s reading.
104.
Knock knock.
Who’s there? Voice message.
Voice message who?
It’s four minutes long. Sorry.
Work & Office
Good for meetings, Slack channels, and team icebreakers.
105.
Knock knock.
Who’s there? Meeting.
Meeting who?
A meeting that could have been an email.
106.
Knock knock.
Who’s there? Deadline.
Deadline who?
The one you said you’d hit by Friday.
107.
Knock knock.
Who’s there? Email.
Email who?
Email asking why you haven’t replied to my other email.
108.
Knock knock.
Who’s there? Printer.
Printer who?
Printer says it’s out of paper. I just filled it five minutes ago.
109.
Knock knock.
Who’s there? Slack.
Slack who?
Slack message from your boss. Suddenly nobody’s slacking.
110.
Knock knock.
Who’s there? Promotion.
Promotion who?
Promotion? I was hoping you’d say “vacation.”
111.
Knock knock.
Who’s there? Vacation.
Vacation who?
Vacation. I’m here to remind you what happiness feels like.
112.
Knock knock.
Who’s there? Reply all.
Reply all who?
Reply all. And I am so, so sorry.
Animals
Expect a few noisy visitors, one very slow one, and at least one animal that refuses to cooperate.
113.
Knock knock.
Who’s there? Penguin.
Penguin who?
I took a wrong turn somewhere. It’s much too warm here.
114.
Knock knock.
Who’s there? Frog.
Frog who?
Frogot my keys. Can you let me in?
115.
Knock knock.
Who’s there? Snail.
Snail who?
Sorry, I started walking here yesterday.
116.
Knock knock.
Who’s there? Cat.
Cat who?
(The cat walks away.)
117.
Knock knock.
Who’s there? Dog.
Dog who?
WOOF!
118.
Knock knock.
Who’s there? Parrot.
Parrot who?
Parrot who? Parrot who? Parrot who?
119.
Knock knock.
Who’s there? Squirrel.
Squirrel who?
Sorry, I got distracted by a nut.
120.
Knock knock.
Who’s there? Duck.
Duck who?
Duck down! There’s a goose chasing me!
Food
121.
Knock knock.
Who’s there? Pizza.
Pizza who?
Pizza the action! I brought enough for everyone.
122.
Knock knock.
Who’s there? Donut.
Donut who?
Donut make me stand out here with no snacks.
123.
Knock knock.
Who’s there? Pickle.
Pickle who?
I’m in a pickle. My sandwich left without me.
124.
Knock knock.
Who’s there? Chef.
Chef who?
Chef’s special tonight: whatever is left in the fridge.
125.
Knock knock.
Who’s there? Bread.
Bread who?
I’m on a roll, so let me in.
126.
Knock knock.
Who’s there? Butter.
Butter who?
Butter open the door before I melt.
127.
Knock knock.
Who’s there? Muffin.
Muffin who?
Muffin much. What’s for dessert?
128.
Knock knock.
Who’s there? Taco.
Taco who?
Taco ’bout a surprise. I brought dinner.
Science & Tech
129.
Knock knock.
Who’s there? Atom.
Atom who?
The one who wants to split the check.
130.
Knock knock.
Who’s there? Orbit.
Orbit who?
Orbit obvious I’ve been circling your house for an hour?
131.
Knock knock.
Who’s there? Magnet.
Magnet who?
I was drawn to your house.
132.
Knock knock.
Who’s there? Electron.
Electron who?
Sorry, I’m feeling negative today.
133.
Knock knock.
Who’s there? Bluetooth.
Bluetooth who?
Bluetooth device connected. Please stop stealing my headphones.
134.
Knock knock.
Who’s there? Cache.
Cache who?
Cache me if you can!
135.
Knock knock.
Who’s there? Software update.
Software update who?
It’ll take four hours and one restart.
Weird & Absurd Knock-Knock Jokes
These get a little stranger. Timing and misdirection do most of the work.
136.
Knock knock.
Who’s there? Nobody.
Nobody who?
Exactly.
137.
Knock knock.
Who’s there? Someone.
Someone who?
Someone who forgot the punchline. Give me a minute.
138.
Knock knock.
Who’s there? Tomorrow.
Tomorrow who?
I’ll tell you tomorrow.
139.
Knock knock.
Who’s there? The punchline.
The punchline who?
Sorry I’m late. I’m the punchline.
140.
Knock knock.
Who’s there? Silence.
Silence who?
…
(Say nothing. That’s the joke.)
141.
Knock knock.
Who’s there? Wrong number.
Wrong number who?
Wrong door, too. Sorry about that.
142.
Knock knock.
Who’s there? Time traveler.
Time traveler who?
Wait… I already told you this yesterday.
143.
Knock knock.
Who’s there? Future me.
Future me who?
Future me says this joke gets better. He was wrong.
144.
Knock knock.
Who’s there? Past me.
Past me who?
I came back for the keys I forgot yesterday.
145.
Knock knock.
Who’s there? Your shadow.
Your shadow who?
Don’t turn around. I’ve been following you all day.
146.
Knock knock.
Who’s there? Your conscience.
Your conscience who?
Put the last cookie back.
147.
Knock knock.
Who’s there? Emergency.
Emergency who?
Emergency! I accidentally ordered 47 pizzas.
148.
Knock knock.
Who’s there? Yesterday.
Yesterday who?
Yesterday already left. You just missed it.
149.
Knock knock.
Who’s there? Knock.
Knock who?
That’s what I said. Try to keep up.
150.
Knock knock.
Who’s there? Knock-knock joke.
Knock-knock joke who?
The one that finally made it to the end of the list.
How to Tell a Knock-Knock Joke
Delivery matters as much as the words.
- Say “Knock knock” clearly. Tapping the table helps.
- Wait for “Who’s there?” Don’t skip ahead. The other person’s line is half the joke.
- Say the setup word clearly. Go slow if it’s a name or a sound.
- Pause after “___ who?” A beat of silence makes the punchline land harder.
- Don’t rush the punchline. Lean on the wordplay part, like the “let us” in “Lettuce.”
- Learn a few favorites. Five jokes you tell well beat fifty you half-remember.
How to Make Your Own Knock-Knock Joke
Start with the funny moment, then fit it into the format. Don’t start with a keyword and force a pun onto it.
- Think of a funny situation. For example, someone peeking through the window while pretending not to be home.
- Find a word connected to it. Icy.
- Look for a phrase it sounds like. “I see.”
- Build the punchline around that phrase. “I see you in there.”
- Say it out loud. If it doesn’t sound natural, rewrite it.
Knock knock.
Who’s there? Icy.
Icy who?
I see you in there. Open up!
If the sound-alike route isn’t working, skip it. A joke can also just be what would actually happen: a meeting that won’t end, a phone at 1%, a cat that walks away.
Why Are Knock-Knock Jokes Funny?
The format is predictable, and the last line isn’t. You know exactly what’s coming (“Who’s there?”, “___ who?”), but you don’t know the punchline.
Then the last line breaks the pattern with a pun, a surprise, or sometimes just a very long silence.
Frequently Asked Questions
What is a knock-knock joke?
A call-and-response joke where one person knocks, the other asks who’s there, and the punchline is a pun or a surprise based on the name or word the first person gives.
How does a knock-knock joke work?
The setup word usually sounds like the start of a phrase, and the punchline finishes that phrase with a twist. Some jokes skip the pun and rely on a situation or timing instead.
What makes a good knock-knock joke?
A natural setup, a punchline that clearly follows, and a short delivery. If you have to explain it, it needs work.
Are knock-knock jokes good for kids?
Yes. The predictable format makes them easy to follow and repeat, especially when the joke uses simple words and familiar situations. Start with Ages 3–5 for the youngest.
Are knock-knock jokes good for classrooms?
They work well as quick warm-ups or brain breaks. The School & Classroom section is a good place to start.
How do you tell one?
Say “Knock knock,” wait for “Who’s there?”, give the setup word, pause after “___ who?”, then land the punchline. How do you make one?
Find the funny moment first, then fit it into the format. A sound-alike phrase or a real situation both work.
Hi, I’m Emma Rose, the creative founder of Punstation.com. With a background in crafting hundreds of engaging guides and clever wordplay, I specialize in making complex information easy and fun to digest. Whether I’m exploring technical trends, lifestyle ideas, or creating my signature witty puns, my goal is to provide useful, well-researched content that helps solve problems and brings a smile to your face. For me, every topic, from tech to humor, is an opportunity to share clear, practical insights with a fresh perspective.