Hangar 18 may refer to:Hangar 18, a conspiracy theory about a hangar at the Wright-Patterson Air Force Base in Ohio purported to contain UFO technology Hangar 18 (band), an American hip hop group Hangar 18 (film), a 1980 science fiction film "Hangar 18" (song), a song by Megadeth from Rust in Peace "Hangar 18, Area 51", a song by Yngwie Malmsteen from the 1999 album Alchemy Hangar 18, an Alienware HD media server Hangar 18, a DLC map for Call of Duty: Black Ops Hangar 18, a music venue in Swansea, Wales.