The fastest way to change your username

Open Call of Duty: Mobile and go to Settings (the gear icon in the top-right corner of the main menu). Tap Account, then select Activision Account. From there, choose Edit Profile and you'll see your current username displayed. Tap on the username field, delete the old one, type your new username, and tap Confirm. The change takes effect when ready in-game.

Your new username will show to other players in matches, on your profile, and in friend lists right away. You don't need to restart the game or your device — just back out to the main menu and you'll see it updated.

Key Takeaways

  • You change your username through Settings > Account > Activision Account > Edit Profile, not through a separate website or app.
  • Usernames can be 3 to 16 characters long and can include letters, numbers, hyphens, and underscores, but no spaces or special characters.
  • You can change your username as often as you want, with no cooldown period between changes.
  • If your username contains profanity or violates Activision's code of conduct, the system will reject it and ask you to choose a different one.

What usernames are allowed

Activision blocks usernames that contain profanity, slurs, or references to hate groups. The system also rejects names that impersonate Activision staff, famous players, or streamers — even if you add numbers or symbols to the end. If you try to set a username and it gets rejected, the game will tell you it violates the code of conduct, but it won't always specify why.

Usernames must be between 3 and 16 characters. You can use uppercase and lowercase letters, numbers, hyphens, and underscores. Spaces are not allowed, and neither are periods, commas, or other punctuation marks. If you're trying to create a username with a space in it, replace the space with an underscore instead.

Changing your username on different devices

The process is the same whether you play on Android, iOS, or through an emulator on PC. Open the game, tap Settings, and follow the Account path described above. Your username change syncs across all devices linked to the same Activision account, so if you play on both your phone and a tablet, both will show the new name when ready.

If you're signed in through a guest account rather than an Activision account, you won't see the Edit Profile option. You'll need to link your game to an Activision account first. Go to Settings > Account > Link Account, create or sign into your Activision account, and then you can change your username.

If your username change doesn't appear

Close Call of Duty: Mobile completely and reopen it. Most of the time, a full restart of the app makes the new username visible. If you're still seeing your old name after reopening, force-close the app: on Android, go to Settings > Apps > Call of Duty: Mobile > Force Stop, then reopen. On iOS, swipe up from the bottom of the screen to close the app in the app switcher, then tap the game icon again.

If the username still doesn't update after a force close and restart, check that you're signed into the correct Activision account. Go back to Settings > Account and confirm the email address shown matches the account where you made the change. If you're signed into a different account than the one you edited, you won't see the new username.

Changing your display name versus your username

Call of Duty: Mobile has two separate name fields: your username (the one other players see in matches) and your display name (which appears on your profile card). Most players only need to change the username. The display name is optional and rarely used in-game.

If you want to change your display name instead, go to Settings > Account > Activision Account > Edit Profile, and look for a separate field labeled "Display Name" below the username field. You can leave this blank or fill it in with something different from your username. The display name has fewer restrictions than the username and can include spaces and some special characters.

Troubleshooting a rejected username

If the game rejects your username choice, the most common reasons are profanity filters, impersonation of known players or staff, or use of banned words. Try removing numbers or symbols and using a completely different word combination. For example, if "xXProPlayer420Xx" gets rejected, try something like "ShadowHunter_88" instead.

If you believe your username was rejected by mistake and doesn't actually violate any rules, you can contact Activision Support through the in-game help menu. Go to Settings > Help & Support, and select "Report a Problem". Describe what username you tried to set and ask why it was blocked. Support can sometimes override the filter if the rejection was an error, though responses can take several days.

Frequently Asked Questions

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

Yes. There's no cooldown between username changes, so you can switch back to an old username whenever you want. Just go through Settings > Account > Activision Account > Edit Profile and type in the name you used before. The system will accept it as long as no one else has claimed that username in the meantime.

Will changing my username affect my rank or progress?

No. Your rank, level, weapons, cosmetics, and all game progress stay exactly the same. Only the name displayed above your character and on your profile changes. Your stats and match history remain linked to your account.

What if someone else is using the username I want?

Usernames in Call of Duty: Mobile are unique — two players cannot have the exact same username. If the name you want is taken, you'll get an error message saying the username is unavailable. Try adding a number or underscore to the end, like "SniperKing_1" instead of "SniperKing".

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

No. Your username and password are separate. Changing your username doesn't affect your account security or password. Your password stays the same unless you choose to change it separately through the Activision account settings.

Can I use special characters like @ or # in my username?

No. Call of Duty: Mobile only allows letters, numbers, hyphens, and underscores. Symbols like @, #, $, !, and & are not permitted. If you want to add visual separation to your name, use an underscore or hyphen instead.