Daimon is both a Japanese surname and a given name. Notable people with the name include:
Daimon Shelton (born 1972), professional American football player
Mikishi Daimon (born 1956), Japanese politician
Fictional characters:
Daimon, antagonist in the Dark-Hunter book series
Daimon (Sailor Moon), series of antagonists in the Sailor Moon metaseries
Daimon (Star Trek), Ferengi rank in the Star Trek universe
Daimon Hellstrom, character in the Marvel Comics universe
Goro Daimon, character in The King of Fighters series of fighting games
Masaru Daimon, character in Digimon Savers