Roblox now allows all users worldwide to change your Roblox account's display name in the account settings as a free feature. This is different than Changing a Username.
How do I change the display name?
Log into your account
(If you can't log in, try these steps for resetting your password .)
What else should I know about display name changes?
Your display name and username will be visible on Roblox and associated experiences