Your username is the name other players see, so pick one you won't regret in a few months

Your Roblox username is permanent. You cannot change it after you create your account, though you can pay Robux (Roblox's in-game currency) to change your display name — the name that shows above your character — while keeping your original username hidden. That matters because your username appears in your profile URL, in game credits, and in some game logs. Pick something you can live with for years, not something that felt funny for five minutes.

The username you choose affects how other players find and remember you. A clear, inoffensive name makes it easier to team up with friends and join communities. A name that's hard to spell, contains numbers that look like letters, or references something you'll be embarrassed about later creates friction. You also cannot use spaces, so "cool player" becomes "coolplayer" or "cool_player" — plan for that from the start.

Key Takeaways

  • Roblox usernames are permanent and cannot be changed, though you can pay to change your display name instead.
  • Keep your username straightforward enough that friends can type it without asking you to spell it twice.
  • Avoid numbers that look like letters (0 for O, 1 for I, 5 for S) because they make your name harder to find and remember.
  • Do not use references to memes, games, or trends that will feel dated or embarrassing in two years.
  • Check that your username is not already taken before you settle on it — Roblox shows you whether a name is available when you type it during account creation.

What makes a username straightforward to remember and type

A good username is short enough to type without mistakes and clear enough that someone can guess the spelling after hearing it once. "Luna" works. "Lun4" does not, because the 4 looks like an A and people will type it wrong. "XxShadowNinjaxx" is technically available, but it is harder to remember than "ShadowNinja" and it looks like a username from 2009.

Stick to letters and one or two underscores or hyphens if you need them. Avoid mixing numbers and letters that look alike: 0 and O, 1 and I, 5 and S, 8 and B. If you want a number in your name, use it as a meaningful part — like a birth year — not as a letter substitute. "Luna2009" is clearer than "Lun4_2009".

Length matters too. Usernames under 12 characters are easier to remember and faster to type. If your first choice is taken, resist the urge to add random numbers to the end. "Luna1" is better than "Luna47382", but "LunaStarlight" is better than either if it is available, because it is a real word combination, not a name plus filler.

Avoiding names you will regret later

Think about what your username says about you and whether you will still want it to say that in three years. A name based on a meme or a trend that is popular right now will feel dated fast. "SusAmongUs" made sense in 2021. In 2025, it signals that you picked your username when you were younger or less thoughtful. That is not a disaster, but it is worth knowing.

Avoid inside jokes that only a few people understand, because they make your name harder to remember for everyone else. Avoid anything that could be read as rude or aggressive, even if you mean it as ironic. Other players will take it at face value, and it can get you reported or blocked by people who might otherwise be your friends.

Do not use a name that is too close to a celebrity, a popular YouTuber, or a Roblox developer. Roblox will not let you use the exact name of someone famous, but "Notch_Minecraft" or "PewDiePie_Fan" can get you reported for impersonation, and moderators may suspend your account. Pick a name that is yours, not a variation of someone else's.

Checking whether your username is available

Roblox shows you whether a username is taken as soon as you type it during account creation. The site will display a green checkmark if the name is available or a red X if it is already in use. You cannot reserve a username before you create an account, so you have to decide on the spot. If your first choice is taken, you have to pick something else right then — there is no waiting list.

If you are torn between two names, create your account with one and use the display name feature to test the other. Your display name is what shows above your character in games, and you can change it as often as you want (though each change costs Robux after the first free change). This lets you see how a name feels in practice before you commit to it as your permanent username.

Using underscores and hyphens without overdoing it

Underscores and hyphens break up words and can help you claim a name that is close to one you really want. "Luna" might be taken, but "Luna_Star" or "Luna-Star" might not be. Use them sparingly — one or two per username is enough. "Luna_Star_Light_Dream" looks cluttered and is harder to type.

Underscores are easier to type on most keyboards than hyphens, so if you have a choice, use an underscore. Some players also find underscores more readable because they create a clearer visual break between words. Hyphens work fine too, but be consistent — do not mix "Luna-Star_Light" because that looks accidental.

Names based on your interests that will still make sense later

If you want your username to reflect something you care about, pick something broad enough that it will still be true in a few years. "GamerLuna" is safer than "RobloxLuna" because you might play other games too. "ArtisticMind" is safer than "DigitalArtist2024" because you might create art in other forms, and the year will feel outdated.

Names based on your favorite game, book, or show work well if that interest is something you have had for years, not something you just discovered. "ZeldaFan" is a solid choice if you have loved the Legend of Zelda series since childhood. "TrendyGameFan" is riskier because trends change and you might feel stuck with a name that no longer fits.

What to do if your first choice is taken

If the username you want is already taken, you have a few options. You can add a meaningful number — like your birth year — to the end: "Luna2005" instead of "Luna". You can add a descriptor: "LunaArtist" or "LunaGamer" instead of "Luna". You can use a hyphen or underscore: "Luna_Star" or "Luna-Dreamer" instead of "Luna".

Avoid adding random numbers or letters just to claim the name. "Luna47" or "Lunaaaaa" feel like you settled, and they are harder for friends to remember. If you cannot find a variation you like, step back and think of a different name altogether. It is better to spend an extra five minutes now than to be stuck with a username you do not like for years.

Frequently Asked Questions

Can I change my username after I create my account?

No, your username is permanent. You can pay Robux to change your display name — the name that shows above your character in games — but your original username stays the same in your profile URL and account history. Choose carefully before you create your account.

What if someone else has the username I want?

Roblox does not have a waiting list or reservation system. If a name is taken, you have to pick something else during account creation. Try adding a number, a descriptor, or an underscore to create a variation that is still available.

Can I use spaces in my username?

No, Roblox does not allow spaces in usernames. Use underscores or hyphens instead: "Luna_Star" or "Luna-Star" instead of "Luna Star". Underscores are easier to type on most keyboards.

Will Roblox let me use a username that is similar to a famous person's name?

Roblox will not let you use the exact name of a celebrity or developer, but names like "NotchMinecraft" or "PewDiePie_Fan" can get you reported for impersonation. Pick a name that is yours, not a variation of someone else's.

Should I include numbers in my username?

Numbers are fine if they mean something — like a birth year. Avoid using numbers as letter substitutes (0 for O, 1 for I, 5 for S) because they make your name harder to remember and type. "Luna2005" is clearer than "Lun4_2005".