Unknown

Unknown or The Unknown may refer to:
Mathematics

Unknown (mathematics), a variable appearing in an equation, in which the equation has to be solved

Film

Unknown (2011 film), a thriller starring Liam Neeson
Unknown (2006 film), a thriller starring James Caviezel
The Unknown (2005 film), an action/thriller starring Miles O'Keeffe
The Unknown (1927 film), a silent horror film starring Lon Chaney
The Unknown (1915 film), a silent boxing film
The Unknown (1946 film), a mystery film

Music

The Unknown (album), a 2014 album by Madeline Juno
The Unknown, an album by Mark B and Blade

Other uses

Unknown (magazine), an American pulp fantasy fiction magazine published from 1939 to 1943
The Unknown (Animorphs), a 1998 book by K. A. Applegate
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