Thirteen can refer to:
- 13, the 2003 film written by a young Nikki Reed.
- 13, the 2007 musical about a group of thirteen thirteen-year-olds featuring thirteen songs.
- 13, the 2016 British Drama Series about a 26 year old who escapes after being held captive in a cellar since the age of thirteen.
- Black Man, known by the US title as Thirteen, a sci-fi novel by Richard K. Morgan.