You can change your username once every 30 days through your account settings

Roblox lets you change the name on your account, but only once per month. The process takes about two minutes and happens entirely in your account settings — you do not need to contact Roblox support unless something goes wrong. Your new username takes effect when ready, though other players may see the old name briefly in some places while the system catches up.

The username you choose must be between 3 and 20 characters long, contain only letters, numbers, and underscores, and cannot be the same as any username already in use on Roblox. Usernames are not case-sensitive, so "MyName" and "myname" count as the same name.

Key Takeaways

  • You can change your username once every 30 days by going to Settings, then Account, then Username.
  • Your new username must be between 3 and 20 characters and can only contain letters, numbers, and underscores.
  • If your desired username is taken, you will see that message when ready and can try a different name.
  • The change takes effect right away, though it may take a few minutes to show up everywhere in the game.
  • If you have changed your username within the last 30 days, you will see a countdown timer showing when you can change it again.

Step-by-step: changing your username on desktop

Open Roblox in a web browser and sign into your account. In the top right corner, click the gear icon or your avatar, then select Settings from the dropdown menu.

On the Settings page, click the Account tab on the left side. Scroll down until you see the UsernameChange Username

Type your new username into the text box. Roblox will tell you when ready if the name is already taken or if it breaks the naming rules. Once you see a green checkmark or confirmation message, click the button to save the change. Your new username is now active.

Changing your username on mobile

Open the Roblox app and tap the three horizontal lines (menu icon) at the bottom right of the screen. Scroll down and tap Settings.

Tap Account, then scroll to find Username. Tap Change Username and enter your new name. The app will show you whether the name is available. Once you confirm, the change takes effect when ready.

What happens if your desired username is taken

If someone else already has the username you want, Roblox will show you an error message as soon as you type it. You cannot reserve a username or join a waitlist — you have to choose a different one.

Try adding numbers or underscores to make the name unique: "John_2024" or "JohnSmith_" instead of just "John". You can also check whether a specific username exists by searching for that player's profile, though this does not tell you whether the name is available for you to take.

The 30-day waiting period between changes

Once you change your username, you must wait 30 days before you can change it again. If you try to change it before that time is up, you will see a message telling you exactly when you can make your next change.

This limit applies to every account, regardless of how old it is or how much Robux you own. There is no way to change your username more frequently, even if you contact Roblox support.

What stays the same when you change your username

Your user ID — a unique number assigned to your account when you create it — never changes. This means your friends list, your games, your inventory, and your Robux balance all stay exactly the same. Other players can still find you by your old username in some places for a short time while the system updates everywhere.

If you have a custom URL like roblox.com/users/12345/profile, that URL still works after you change your name. The number in the URL is your user ID, not your username, so it never changes.

Troubleshooting: what to do if the change does not work

If you click the change button and nothing happens, try refreshing the page and signing in again. Clear your browser cache if you are on desktop, or close and reopen the app on mobile.

If you see an error message that does not make sense, or if the change button is greyed out and you know it has been more than 30 days, sign out completely and sign back in. If the problem persists, you can contact Roblox support through the Help page in your Settings, though response times vary.

Frequently Asked Questions

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

Yes, as long as no one else has taken that name in the meantime. You can change back to any previous username you owned, but you still have to wait 30 days between changes. If someone else claimed your old name, you cannot use it again unless they change theirs.

Do my friends see my old username or my new one?

Your friends see your new username when ready in their friends list. In games and chat, the new name usually shows up right away, though there may be a delay of a few minutes while Roblox updates everything. Old messages you sent before the change will still show your old username.

What if I change my username and then want to change it again the next day?

You cannot. You must wait the full 30 days from the date you made the last change. If you change your username on March 15, you cannot change it again until April 14. The countdown timer in your Settings shows you the exact date and time when your next change becomes available.

Can I have spaces or special characters in my username?

No. Roblox usernames can only contain letters (A–Z), numbers (0–9), and underscores (_). Spaces, hyphens, periods, and other symbols are not allowed. If you try to use them, you will see an error message telling you the name is invalid.

What if someone is using a username that looks like mine?

Usernames on Roblox are not case-sensitive and do not have to be unique in appearance — two players can have names that look almost identical. If you believe someone is impersonating you or using a name too similar to yours to confuse other players, you can report them through the in-game report tool or contact Roblox support with details.