Your Roblox username is the name other players see when you play games and chat on the platform

A Roblox username is the display name you choose when you create an account. It appears above your character in games, on your profile page, and whenever you send messages or join group chats. Other players use your username to find you, add you as a friend, or invite you to games. Think of it as your identity on Roblox — it's how people know who you are.

Your username is different from your account email. The email is what you use to log in; the username is what everyone else sees. You pick your username during account creation, and it becomes permanent unless you pay Robux (Roblox's in-game currency) to change it later.

Key Takeaways

  • Your username is the name visible to other players in games and on your profile, separate from your login email.
  • Usernames must be between 3 and 20 characters long and can include letters, numbers, and underscores.
  • Roblox filters out usernames that contain profanity, hateful language, or references to real-world violence or illegal activity.
  • You can change your username once for free, but additional changes cost 1,000 Robux each.
  • If your username is taken, you must choose a different one — Roblox does not hold or reserve names.

Username rules and what you can and cannot use

Roblox has specific rules about what characters and words are allowed in a username. Your username must be between 3 and 20 characters long. You can use letters (A–Z), numbers (0–9), and underscores (_). You cannot use spaces, hyphens, periods, or special characters like @, #, or $.

Roblox automatically blocks usernames that contain profanity, slurs, hateful language, or references to illegal activity, violence, or self-harm. The system also rejects names that impersonate Roblox staff or famous people. If you try to create a username that breaks these rules, the site will tell you it's unavailable and ask you to pick a different one.

How to check if a username is already taken

When you create a new account, you type your desired username into the signup form. If someone else already has that name, Roblox tells you when ready that the username is taken. You then have to choose a different one before you can finish creating your account.

If you want to check whether a specific username exists without creating an account, you can visit a player's profile page directly by typing the username into the Roblox website URL. If the profile loads, the username is taken. If you get a "user not found" message, the name is available — though someone else may claim it before you do.

Changing your username and the cost involved

Your first username change is free. After that, each change costs 1,000 Robux. You can change your username as often as you want if you have enough Robux to pay for it. To change your username, go to your account settings, find the username field, and click the change option. You'll see a list of available names or be able to type in a new one.

When you change your username, your old name becomes available for someone else to claim. Your friends list, game progress, and inventory stay with your account — only the display name changes. The change takes effect when ready.

What happens if you forget your username

If you forget your username but remember your email address, you can log in using the email instead. Once you're logged in, your username appears at the top of the screen and on your profile. You can also check your username by going to your account settings.

If you forget both your username and your email, you'll need to contact Roblox support. They can help you recover your account if you can answer security questions or provide other proof that you own the account.

Why usernames matter in Roblox games

Your username is how other players identify and interact with you. In multiplayer games, players call out usernames to coordinate, find teammates, or report bad behavior. On the Roblox social features — groups, forums, and friend lists — your username is the only name people see. If you want to build a reputation, make friends, or join a gaming community, your username is your public face.

Some players choose usernames that reflect their gaming style or interests. Others pick names that are straightforward to remember or spell so friends can find them quickly. Whatever you choose, keep in mind that your username is visible to millions of players, so pick something you're comfortable with long-term.

Frequently Asked Questions

Can I use spaces or special characters in my username?

No. Roblox usernames can only contain letters, numbers, and underscores. Spaces, hyphens, periods, and symbols like @ or # are not allowed. If you want to separate words, use an underscore instead.

What if someone is using a username I want?

If a username is taken, you cannot have it unless that player deletes their account and the name becomes available. Roblox does not hold or reserve usernames. You'll need to choose a different name or wait to see if the account becomes inactive and the name is eventually released.

Do I have to pay Robux to change my username?

Your first username change is free. Every change after that costs 1,000 Robux. If you don't want to spend Robux, you can keep your original username permanently.

Can I have the same username as someone on another platform?

Yes. Roblox usernames are separate from usernames on YouTube, Discord, or other platforms. You can have the same name on multiple sites, or completely different names — it's up to you.

What if my username gets reported or flagged?

If your username violates Roblox rules, the platform may force you to change it. You'll receive a notification explaining why. You can then choose a new username that follows the guidelines. Repeated violations can result in account restrictions.