Legion

Template:Wiktionary Legion can refer to several encyclopedic topics, including:

In military history, an organization or military unit:
- A Roman legion.
- A Polish Legion.
- A Foreign Legion.
- The American Legion.
- The Czech Legion.
- The Spanish Legion.
- The Royal British Legion.
In naval warfare:
- HMS Legion, one of several Royal Navy ships of the name
In bible studies:
- Legion (demon), a demon mentioned in the Gospels Mark and Luke
In literature:
- Legion (book), a novel by William Peter Blatty
In computer science:
- Legion (model), a computer programming model
- Legion (software), a software package
In comic books:
- Legion, an X-Men villain
- The Legion of Super-Heroes', a DC Comics superhero team
- L.E.G.I.O.N., a DC Comics title
- Legion, a Green Lantern villain
In film:
- Legion (kaiju), the villainous monster in Gamera 2: Attack of Legion
In video games:
- The Legion (Guild), a gaming guild
- Legion is the name of a prominent recurring enemy in the Castlevania series
- Imperial Legion of Tamriel, The Elder Scrolls series
- Burning Legion is the name of the demonic army created by the titan Sargeras of the Warcraft Universe
- Shinobi Legions