King Lear is a tragedy by William Shakespeare, named for the pseudohistorical king of Britannia Leir of Britain.
King Lear may also refer to a number of performances of King Lear, or works derived from it:
- The History of King Lear (1681 play), a rewritten version of King Lear by Nahum Tate
- Le roi Lear (1831 overture), a concert overture by Hector Berlioz
- The Yiddish King Lear (1892 play), an adaption by Jacob Gordin, set in the mid-19th century
- King Lear (1910 film), an Italian silent film
- King Lear (1916 film), an American silent film
- King Lear (1953 film), a film starring Orson Welles
- King Lear (1971 USSR film), a film by Grigori Kozintsev
- King Lear (1971 British film), a film starring Paul Scofield
- Lear (1978 opera), an opera by Aribert Reimann
- King Lear, a 1982 production of BBC Television Shakespeare
- King Lear (1983 film), a UK television drama starring Laurence Olivier
- King Lear (1987 film), a film by Jean-Luc Godard
- King Lear (1997 film), a Swedish television film starring Anders Andersson
- King Lear (1998 film), a 1998 British television film starring Ian Holm
- King Lear (1999 film), a film starring Brian Blessed
- Kuningas Lear (2000 opera), an opera by Aulis Sallinen* King Lear (2008 film), a British film starring Ian McKellen
- The Tragedy of King Lear (2000 screenplay), an unpublished screenplay by Harold Pinter
- King Lear (2018 film), a British film starring Anthony Hopkins
Additionally, King Lear may refer to