The expression Number Four can 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
- A character also known as Simon in the reimagined Battlestar Galactica.
- A character in the 2011 film I Am Number Four
Famous quotes containing the word number:
“[The] elderly and timid single gentleman in Paris ... never drove down the Champs Elysees without expecting an accident, and commonly witnessing one; or found himself in the neighborhood of an official without calculating the chances of a bomb. So long as the rates of progress held good, these bombs would double in force and number every ten years.”
—Henry Brooks Adams (1838–1918)