Headlong may refer to: Headlong (theatre company), a British theatre company Headlong (Williams novel), a 1980 novel by Emlyn Williams Headlong (Frayn novel), a 1999 novel by Michael Frayn Headlong (Ings novel), a 1999 novel by Simon Ings "Headlong" (song), a song by Queen from Innuendo "Headlong", a song by IQ from The Wake