Unknown

Unknown or The Unknown may refer to:

Film and television

Unknown (magazine), an American pulp fantasy fiction magazine published from 1939 to 1943
The Unknown, a 1998 book in the Animorphs series by K. A. Applegate
The Unknown (hypertext novel), a 1999 web-based hypertext novel written by William Gillespie, Scott Rettberg and Dirk Stratton with Frank Marquardt
The Unknown (1963 anthology), an anthology of fantasy fiction short stories edited by D. R. Bensen and illustrated by Edd Cartier
The Unknown, a comic book mini-series by Mark Waid

The Unknown (Madeline Juno album) (2014)
Unknown (Rasputina album) (2015)
The Unknown (The Vision Bleak album) (2016)
The Unknown, a 2014 album by Dillon
"The Unknown" (song), by 10 Years, 2019
"The Unknown", a song by Crossfade from Crossfade, 2004
"The Unknown (Strength)", a song by In Hearts Wake from Divination, 2012
"The Unknown", a song by Imagine Dragons from the deluxe edition of Smoke + Mirrors, 2015
"The Unknown", a song by Shadows Fall from Fire from the Sky, 2012
"Unknown", a song by Reks from The Greatest X, 2016

Unknown (mathematics)
, a variable that appears in an equation for which a solution is sought
Unknown, the ongoing answer to an open problem

"The Unknown" (Over the Garden Wall), an episode of Over the Garden Wall
- The Unknown, a location in Over the Garden Wall
The Unknown, a character in Willy's Chocolate Experience
The Unknown, a sculpture by Kenny Hunter
Unknown, a Unicode script
The Unknowns, a self-proclaimed ethical hacking group