Number Four
# Number Four

Number Four may refer to:

* 4 (number), a number, numeral, and glyph
* A hamlet in the town of Watson, New York
* #4, the pseudonym of American musician Jim Root, when performing with Slipknot
* A character from the Earthworm Jim video games and animated series
* Numbuh Four, a character from Codename: Kids Next Door
* A predominantly defensive position in polo
* Jean Béliveau (1931–2014), Canadiens hockey player, frequently known by his sweater number, number 4
* A character also known as Simon in the reimagined Battlestar Galactica
* A character in the 2011 film I Am Number Four, based on the 2010 book of the same name
* "Number Four" (single), a 2013 single by My Chemical Romance
* Number 4 (album), also styled as #4, a 2005 album by Ling Tosite Sigure
