The DisplayName is a Player property that contains the display name of the authenticated user associated with the Player object. Unlike usernames, display names are non-unique names a player displays to others. If the Roblox user has not chosen one, the property will read the same as the Name property.

Notes

• Since display names are non-unique, it’s possible for two players in a single instance to have identical names. If you need a globally unique identifier for a player, use Player.UserId (which is static) or Player.Name (which is the current Username) instead.
• Characters generated with LoadCharacter or by the Roblox engine will have their Humanoid’s DisplayName property assigned to the Player’s DisplayName property.
• Display names may have unicode characters in the string. See UTF8 for more information on how to work with strings with unicode characters.