King of the World
King of the World may refer to:
Books
- King of the World (biography), 1998 biography of boxer Muhammad Ali, by David Remnick
 - King of the World, a 1989 novel by Merrill Joan Gerber
 - The King of the World, a 1927 book by René Guénon
 
Film and television
- King of the World (film), a 2000 television film about Mohammed Ali
 - King of the World: The King Kong Show, a 1966 television special of The King Kong Show
 
Music
Albums
- King of the World (album), a 1980 album by Sheila and B. Devotion, and its title track
 - King of the World, a 1970 album by Cuby + Blizzards
 - King of the World, a 2007 album by Ward 21
 
Songs
- "King of the World" (Natalie Grant song), 2016
 - "King of the World" (Point of Grace song), 2008
 - "King of the World" (Weezer song), 2016
 - "King of the World", a 1973 song by Steely Dan from Countdown to Ecstasy
 - "King of the World", a 1994 song by Angelfish from Angelfish
 - "King of the World", a 1995 song by Jason Robert Brown from the musical Songs for a New World
 - "King of the World", a 1995 song by Blackhawk from Strong Enough
 - "King of the World", a 1998 song by Jeff Black from Birmingham Road
 - "King of the World", a 1999 song by The Smithereens from God Save The Smithereens
 - "King of the World", a 2001 song by Bob Schneider from Lonelyland
 - "King of the World", a 2006 song by Toto from Falling in Between
 - "King of the World", a 2009 song by Livan
 - "King of the World", a 2009 song by Porcelain Black
 - "King of the World", a 2012 song by Show of Hands from Wake the Union
 - "King of the World", a 2015 song by Blue from Colours
 - "King of the World", a 2015 song by Natalie Grant from Be One
 - "King of the World", a 2019 song by Natasha Bedingfield from Roll with Me
 - "King of the World", a 2023 song by Hotel Mira
 
Other
- King of the Universe, an ancient Mesopotamian title
 - I'm the king of the world! - a line from the 1997 film Titanic