"Hangar 18" is a song by American thrash metal band Megadeth from their 1990 studio album Rust in Peace.

The song was inspired by a mythical building purportedly located at Wright-Patterson Air Force Base near Dayton, Ohio, where an alien spacecraft or bodies were supposedly stored.

[3] The cover of Rust in Peace, the album on which the song appears, depicts the band's mascot, Vic Rattlehead, and a number of world leaders viewing an alien in a cryogenic chamber, a clear reference to the track.

[5] "Hangar 18", which was originally titled "N2RHQ" ("into our headquarters"), was one of a handful of Megadeth songs written for Dave Mustaine's first band, Panic.

It tells the fictional story of the life-forms said to be contained in Hangar 18 coming back to life and killing those inside the building before escaping.