Change your LEGO username through your account settings

You can change your LEGO username by logging into your LEGO account online, going to your profile settings, and updating the username field. The change takes effect when ready, though you may need to log out and back in to see it reflected across LEGO games and apps. Your email address stays the same — only the display name changes.

The process differs slightly depending on whether you're changing it on a computer or a mobile device, but both routes use the same account settings page. If you've forgotten your password or can't access your account, you'll need to reset it before you can change your username.

Key Takeaways

  • Log into your LEGO account at LEGO.com, then navigate to your profile or account settings to find the username field.
  • Your new username takes effect right away, but you may need to sign out and sign back into LEGO games and apps to see the change.
  • LEGO usernames can contain letters, numbers, and some special characters, but spaces and certain symbols are not allowed.
  • If your desired username is already taken, LEGO will tell you when ready and you'll need to choose a different one.

Steps to change your username on a computer

Start by opening a web browser and going to LEGO.com. Click the account icon in the top right corner — it usually looks like a person's silhouette or shows your current username. Select "My Account" or "Account Settings" from the dropdown menu.

Once you're in your account dashboard, look for a section labeled "Profile," "Personal Information," or "Account Details." Click into that section. You should see a field that shows your current username. Click on it or look for an "Edit" button next to it. Clear the old username and type in your new one. LEGO will check in real time whether the name is available — if it's taken, you'll see a message telling you to choose something different. Once you've entered a username that's available, click "Save" or "Confirm." You may be asked to enter your password again for security. After you save, log out completely and log back in to make sure the change has taken effect across all LEGO services.

Steps to change your username on a phone or tablet

Open the LEGO app or go to LEGO.com in your mobile browser. Tap the menu icon — usually three horizontal lines in the top left or right corner. Look for "My Account," "Profile," or "Settings" and tap it.

Find the section for personal information or profile details. Tap the username field to edit it. Type your new username and check whether it's available — the app will show you a message if someone else is already using it. Once you've chosen an available name, tap "Save" or "Confirm." You'll likely be asked to enter your password. After saving, close the app completely and reopen it, then log in again to confirm the change has gone through.

What usernames LEGO will and won't allow

LEGO usernames can be 3 to 16 characters long and can include uppercase and lowercase letters, numbers, and underscores. Spaces, hyphens, and most special characters are not allowed. LEGO also blocks usernames that contain profanity, impersonate real people, or violate their community standards.

If you try a username and LEGO rejects it without saying it's taken, the name likely violates their content policy. Try a different combination. Usernames are not case-sensitive, so "JohnSmith" and "johnsmith" are treated as the same account.

What happens to your old username

Once you change your username, no one else can use your old one when ready. LEGO holds it for a period of time before it becomes available again — this prevents someone from impersonating you by taking your old name right after you change it. The exact length of this hold period is not published by LEGO, but it's typically several weeks to a few months.

Your friends' lists, game progress, and any LEGO purchases remain tied to your account regardless of the username change. People who had you added as a friend will still see you in their friends list, though your display name will update to the new username.

Troubleshooting if your change won't save

If you click "Save" but the username doesn't change, first check that you've entered a username that's actually available — LEGO won't save a name that's already taken. Clear your browser cache or app cache and try again. On a computer, use Ctrl+Shift+Delete (Windows) or Command+Shift+Delete (Mac) to open your browser's cache-clearing menu, then reload LEGO.com and try the change again.

If the problem persists, try logging out completely, closing your browser or app, waiting a few minutes, and logging back in. If you're still stuck, check whether your account has any restrictions or holds on it — sometimes LEGO locks certain account functions if they detect unusual activity. You can contact LEGO Customer Service through their website to confirm your account is in good standing and to get help with the change.

Changing your username across LEGO games and apps

When you change your username on LEGO.com, the change applies to your main LEGO account. However, some LEGO games and apps — particularly older ones or games made by other studios — may not sync when ready. After you change your username, sign out of any LEGO games and apps you have open, close them completely, and sign back in.

If a game still shows your old username after you've signed out and back in, the game may not be connected to your main LEGO account, or it may use a separate username system. Check the game's settings to see whether it has its own username field separate from your LEGO account username. Some games let you set a display name independently of your account name.

Frequently Asked Questions

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

Yes, you can change your username as many times as you want. However, if you changed it recently, your old username may still be on hold and unavailable. Wait a few weeks and try again, or contact LEGO Customer Service to ask whether your previous username is available yet.

What if the username I want is taken?

LEGO will tell you when ready if a username is already in use. You'll need to choose a different one. Try adding numbers or an underscore to make it unique — for example, "JohnSmith42" or "John_Smith" instead of "JohnSmith."

Will changing my username affect my LEGO purchases or game progress?

No. Your account, purchases, and game progress are all tied to your email address and account ID, not your username. Changing your username does not affect any of these things.

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

No, your password and username are separate. You can change one without changing the other. However, if you're concerned about account security, changing your password at the same time is a good idea.

Why does my game still show my old username after I changed it?

Some games take time to sync the change, or they may not be connected to your main LEGO account. Try signing out of the game completely, closing it, and signing back in. If it still shows the old name, the game may use a separate display name that you need to update in that game's own settings.