You can change your Kahoot username from your account settings on any device

Kahoot stores your username in your account profile, and you can update it whenever you want through the settings menu. The process takes about two minutes and works the same way whether you're on a computer, phone, or tablet. Your new username takes effect when ready, though other players may still see your old name in their recent game history for a few hours.

You'll need to be logged into your Kahoot account to make this change. If you play Kahoot without logging in — as a guest during a live game — you won't have a permanent username to change, and each game will ask you to enter a name from scratch.

Key Takeaways

  • Log into your Kahoot account, click your profile icon, and select "Settings" to find the username field.
  • Usernames can be 3 to 16 characters long and cannot contain spaces, though underscores and numbers are allowed.
  • If your desired username is already taken, Kahoot will tell you when ready and you'll need to choose a different one.
  • The change is when ready in your own account, but may take a few hours to update in other players' friend lists or recent game records.

Steps to change your username on desktop

Open Kahoot in your web browser and log in with your email and password. Once you're on your home page, look for your profile icon — usually a small circle or avatar in the top right corner of the screen. Click it to open a dropdown menu.

Select "Settings" from the menu. You'll see a page with your account information, including a field labeled "Username." Click inside that field, delete your current username, and type your new one. Kahoot will check in real time whether the name is available; if it's taken, you'll see a message telling you so. Once you've entered a username that's available, click "Save" or "Update" (the button label varies slightly by version). Your new username is now active.

Steps to change your username on mobile or tablet

Open the Kahoot app and log in. Tap the profile icon at the bottom of the screen (on most phones this is in the lower right corner). This opens your profile page.

Tap "Settings" or the gear icon. Find the "Username" field and tap it to edit. Delete your old username and enter the new one. The app will show you whether it's available. Once you've chosen an available name, tap "Save" or "Done." Your username updates when ready in the app.

Username rules and what you can't use

Kahoot usernames must be between 3 and 16 characters long. You can use letters, numbers, and underscores, but not spaces or most special characters. Usernames are case-insensitive, meaning "Player123" and "player123" are treated as the same name.

You cannot use a username that's already taken by another player. Kahoot will reject it and ask you to try again. If the username you want is taken, you can add a number or underscore to make it unique — for example, "Player_123" instead of "Player123." Kahoot does not allow usernames that contain profanity or hate speech; if you try to save one, the system will block it and ask you to choose something else.

What happens to your old username after you change it

Your old username disappears from your account when ready. New games you play will show your new username to other players. However, games you played before the change will still display your old username in the results and leaderboards, because those records are permanent.

If other players have you added as a friend, they'll see your new username the next time they open the app or refresh their friend list. In some cases this can take a few hours. Your old username becomes available for another player to claim after you change it.

If you can't find the settings menu

On desktop, make sure you're logged in — if you see a "Log In" button instead of a profile icon, you're viewing Kahoot as a guest. Click "Log In," enter your credentials, and try again. The profile icon should appear in the top right once you're logged in.

On mobile, check that you're using the official Kahoot app from the App Store or Google Play, not a web browser. The app has a profile icon at the bottom of the screen; the mobile web version has it in the top right. If you're still not seeing a settings option, try logging out completely and logging back in, or uninstall and reinstall the app.

Frequently Asked Questions

Can I change my username back to what it was before?

Yes, you can change your username to anything available, including a previous username you used. However, if another player has claimed that old username in the meantime, you won't be able to use it until they change theirs.

What if the username I want is taken?

Try adding a number, underscore, or variation to the end. For example, if "QuizMaster" is taken, try "QuizMaster1" or "Quiz_Master." Kahoot will tell you when ready whether your choice is available when you type it in.

Do I need to change my password when I change my username?

No. Your username and password are separate. Changing your username does not affect your login credentials or security settings.

Will my friends still see me in their games after I change my username?

Yes. Your new username will appear in any new games you play together. Old game results will still show your previous username, but your friend list will update to show your new name within a few hours.