X-Man is a Marvel Comics superhero.
X-Man may also refer to:
- X-Man, a member of the X-Men
- X-Man (TV series), a South Korean game show
- Xavier Carter (born 1985), nicknamed X-Man, American track and field athlete
- Xavier McDaniel (born 1963), nicknamed "the X-Man," American basketball player
- Xavier Nady (born 1978), nicknamed X-Man, American baseball player
- Xander Bogaerts (born 1992) nicknamed X-Man, Aruban baseball player
- X-Man (video game)
- Xman, a 1987 novel by Michael Brodsky
- Ken Carson (born 2000), nicknamed X-Man, American rapper