"The Dead Man", a 1946 short story by Jorge Luis Borges

Someone who is dead.

The Dead Man, a 1989 comic strip in 2000 AD

Dead Man, a 1995 film written and directed by Jim Jarmusch

Dead man's hand, a hand of cards in poker and things named after it:

"Dead Man", a song by Jars of Clay from their album Good Monsters

Dead man's switch, a safety measure intended to take a specific action in case a human operator becomes incapacitated in some way; a form of fail-safe. For other uses:

"Dead Man's Chest", a fictional sailor's shanty, and other uses:

"Dead Man" (Pearl Jam song)

Dead Man's Curve, a stretch of road that has claimed a number of lives, other uses:

Dead man statute, a statute designed to prevent perjury by prohibiting a witness from testifying about communications with a decedent

"Dead Man", a song by M. Ward from his 2003 album Transfiguration of Vincent

Dead Man Walking (disambiguation), a widely used phrase

Dead man's hand (disambiguation)

Dead Man's Curve (disambiguation)

Dead Man's Chest (disambiguation)

Dead man's switch (disambiguation)