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

To change your Roblox username, log into your account on the Roblox website, go to Settings, select the Account tab, and click the "Change Username" button next to your current name. You'll see a text field where you can type your new username, a preview of how it will look, and a button to confirm the change. The new username takes effect when ready once you confirm.

Roblox limits username changes to once per 30 days. This means if you changed your username yesterday, you won't be able to change it again for another 29 days. The system counts from the date you made the last change, not from the calendar month. If you try to change it before 30 days have passed, you'll see a message telling you when you can change it next.

Key Takeaways

  • Username changes happen in Settings > Account > Change Username on the Roblox website, not in the mobile app.
  • You can change your username once every 30 days, and the new name takes effect right away.
  • Usernames must be between 3 and 20 characters, contain only letters, numbers, underscores, and hyphens, and cannot start with a number.
  • If your desired username is taken, Roblox will tell you when ready and you'll need to choose a different one.
  • Changing your username does not affect your account security, your Robux balance, your inventory, or your friends list.

Username rules and what names Roblox will reject

Roblox has specific rules about what characters and patterns are allowed in a username. Your username must be between 3 and 20 characters long. You can use letters (both uppercase and lowercase), numbers, underscores, and hyphens. You cannot use spaces, periods, commas, or special characters like @, #, $, or &.

Your username cannot start with a number. For example, "123player" is not allowed, but "player123" is fine. Roblox also blocks usernames that contain profanity, slurs, or references to illegal activity, even if you spell them creatively. If you try to use a blocked word, the system will reject it and ask you to choose something else. The rejection happens when ready when you try to confirm the change, so you'll know right away if a name won't work.

What happens if the username you want is already taken

When you type a new username and click the button to check it, Roblox tells you when ready whether that name is available. If someone else has already taken it, you'll see a message saying the username is unavailable. You cannot reserve a username or join a waitlist for one — you have to pick a different name.

If you want a specific username that's taken, your only option is to wait and hope the person who has it stops using Roblox and their account becomes inactive. Roblox does not recycle usernames from inactive accounts, so this is not a reliable strategy. Instead, try variations: add numbers to the end, use an underscore or hyphen, or combine it with a word that fits your interests.

How to change your username on mobile versus desktop

The username change feature only works on the Roblox website, not in the mobile app. If you're on an iPhone or Android phone, open a web browser, go to roblox.com, and log in there. Then follow the same steps: Settings > Account > Change Username. You cannot change your username through the Roblox mobile app, even if you have the latest version installed.

On desktop, the process is the same whether you use Windows, Mac, or Linux — any web browser will work. Chrome, Firefox, Safari, and Edge all display the Settings page correctly. If you're having trouble finding the Change Username button, make sure you're logged in and that you're on the Account tab, not the Billing or Privacy tabs.

What does not change when you change your username

Your account ID, Robux balance, game inventory, and friends list all stay exactly the same. When you change your username, your friends will see your new name the next time they log in, but they don't have to re-add you or do anything on their end. Your game progress, achievements, and any games you've created remain tied to your account and are not affected.

If you own a game or group on Roblox, it will still show your new username as the creator or owner. Any messages or comments you left before the change will show your new username, not your old one. There is no way to see what your old username was unless you remember it yourself — Roblox does not keep a public history of past usernames.

Troubleshooting: why the Change Username button might not appear

If you don't see the "Change Username" button in your Account settings, the most common reason is that you changed your username less than 30 days ago. Check the message on that page — it will tell you the exact date you can change it again. You cannot bypass this waiting period.

Another reason the button might not appear is if you're not logged in or if you're viewing someone else's account. Make sure you're logged into your own account and that you're in your own Settings, not a friend's profile. If you're still not seeing it after checking both of those things, try logging out completely, closing your browser, and logging back in. Sometimes a browser cache issue can hide the button temporarily.

Frequently Asked Questions

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

Only if no one else has taken that old username in the meantime. When you change your username, the old one becomes available for other players to claim. If you want to go back to it, you'll have to check if it's still free and change to it during your next 30-day window.

What if I made a typo in my new username and want to fix it right away?

You have to wait 30 days from when you made the change. Roblox does not make exceptions for typos or mistakes. If you made a username change today and realized you misspelled it, you'll need to wait a month before you can change it again.

Do I need to pay Robux to change my username?

No. Changing your username is free. Roblox does not charge Robux or real money for username changes. If a website or app claims you have to pay to change your username, it is not an official Roblox service.

Will my old username be deleted or can other people use it?

Your old username becomes available for other players to claim as soon as you change it. Roblox does not delete old usernames or hold them in reserve. If you want that username back later, you'll have to check if someone else has taken it.

Can I change my username if my account is banned or suspended?

If your account is suspended or banned, you cannot log in, so you cannot access Settings to change your username. You would need to contact Roblox support about your account status first. If your account is permanently banned, you will not be able to change the username.