Legion of Super-Heroes, a DC comics superhero team

Roman Legion

Legion of Super Heroes (animated series), inspired by the DC Comics superhero team

American Legion, an organization of United States veterans

Legion of Christ (contemporary religious organization)

Ghostbusters: Legion, a comic book series.

Legionary Romania, a term used sometimes for the period of Romanian history when the above dominated the country's politics

"Legion" is a song by VNV Nation from the album Empires.

Legion Field, a stadium in Birmingham, Alabama

HMS Legion (G74), a Royal Navy ship sunk in 1941

The Royal British Legion

The Theban Legion - a Roman Legion whose members, under a long-lasting tradition, were massacred for their Christian belief

Legion, a novel by William Peter Blatty

Legion (demon)

Legion, a supervillain in Marvel Comics.

L.E.G.I.O.N., a DC Comics title.

Legions (Magic: The Gathering)

Military Order of the Loyal Legion of the United States, a post-Civil War fraternity of loyal service members

Legion, a supervillain in DC Comics.

Legion (Red Dwarf episode)

Legion of the United States, an early United States land force

Racine Legion, an American football team

Legion, an album by Deicide

Battle of the City of Legion

Legion Records

Royal Canadian Legion

Legion State Park

Legion (biology)

Legion Arena, a computer game released in 2005

Foreign legion

Colchester Legion Stadium, a stadium in Truro, Nova Scotia

Legion (software), a computer software system

Legion Park, a stadium in Great Falls, Montana

American Legion Auxiliary, a woman's service organization affiliated with the American Legion

Legion Stadium, the main stadium in the Legion Sports Complex

Legion Interactive, an Australian telecommunications company

Legion Sports Complex, a complex in Wilmington, North Carolina

Hampton's Legion, a combined arms force of the Confederate States Army recruited and led by Wade Hampton III in the American Civil War.

Nauvoo Legion, a militia playing a significant part in early Mormon history

Alpha Legion in the fictional universe of Warhammer 40,000

The Legion of Space, science fiction series by Jack Williamson.

"Legion" is a song by Junkie XL from the album Big Sounds of the Drags.

The Romanian version of a fascist movement, the Iron Guard, was founded as the "Legion of the Archangel Michael"

Legionary ant or Army ant, particularly aggressive types of ant