20th century (disambiguation)

The 20th century of the Common Era began on 1 January 1901 and ended on 31 December 2000, according to the Gregorian calendar.

20th century may also refer to:
 * 20th century BC

Film and theatre

 * 20th Century Studios, a film studio formerly known as 20th Century Fox
 * Twentieth Century Pictures, one of the predecessors of 20th Century Studios (along with Fox Film)
 * Twentieth Century (play), a 1932 Broadway play
 * Twentieth Century (film), a 1934 American comedy
 * On the Twentieth Century, a 1978 musical based on the play and film
 * The Twentieth Century, the 1957–1970 television series
 * 20th Century with Mike Wallace, the 1990s–2000s television series
 * The Twentieth Century (film), a 2019 film by Matthew Rankin
 * 20th Century Girl, a 2022 film by Bang Woo-ri

Music

 * 20th Century Records, a record label begun as a soundtrack division of Twentieth Century Pictures
 * 20th Century, a sub-unit of Japanese boyband V6
 * Twentieth Century (Cold Chisel album), 1984, or the title song
 * Twentieth Century (Alabama album), 1999, or the title song
 * 20th Century (3X Krazy album)
 * 20th Century (John Sykes album)
 * "Twentieth Century", a song by Pet Shop Boys from Fundamental

Other

 * Twentieth Century (typeface), a sans-serif typeface
 * 20th Century (cocktail), a gin cocktail
 * Twentieth Century Motor Car Corporation, a failed automobile company
 * The Twentieth Century (periodical), a continuation of The Nineteenth Century (periodical)
 * XXth Century, Nazi Germany-funded journal in Shanghai published by Klaus Mehnert