In all the world, Legion (Legion 
, Legioen, Légion 
) is a rare male given name. The forename Legion is characteristic of Indonesia, where it is a very rare boy's name, South Africa, where it is a very rare mostly masculine, but infrequently girly name, and Philippines, where it is a very rare primarily boy's, but very seldom female name. More prevalently, Legion is the last name as well as the forename.
Legion is also a name for the fictitious and mythical characters: Legion , the supervillain in DC Comics, Emerald Dawn; Legion , the video game character, Mass Effect 2 and Legion , the Demon or group of demons.