A Massively-Multiplayer-Online name generator is a feature that lets users randomly generate names for their characters. Character names in an MMO are typically either permanent or at least require in-game or actual currency to change.
Name generators are typically highly customized and take game information into account when generating the names. A generator for a fantasy game produces very different names than one for a shooting game set in the Wild West. Some generators take one or more in-game languages into account to generate names rooted in the game lore. Some veteran MMO players refuse to help new players if they believe their names do not suit the atmosphere of the game.