Down Under is a colloquialism which refers to Australia.

Down Under may also refer to:

"Down Under" (song), by Australian rock band Men at Work

Down Under (album), an album by Bill Cosby

Down Under (book), a 2000 travelogue about Australia by Bill Bryson

Down Under (1927 film), a film directed by Harry Southwell

Down Under (2016 film), an Australian film starring Damon Herriman

"Down under", a euphemism for genitalia

"Down Under", a song by Blonde Redhead from La Mia Vita Violenta