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Accounts on the Roblox platform are identified by usernames, which are distinct and personalized. When users interact in-game or on the website, others will see their names.
Usernames will be then be only used to log into your Roblox account. There are a few advantages of display names. First and foremost, unlike the username, the display name doesn't need to be unique.
A Roblox Display Name means that as well as customizing the appearance of your avatar, you can also determine what name is seen by other players and will appear in different areas of the game too ...