Charles Troy Coleman (March 15, 1947 – September 10, 1990) was an American convicted murderer and suspected serial killer who was executed in 1990 by the state of Oklahoma. He was convicted in 1979 of the murder of John Seward, who, along with his wife, was killed by a shotgun blast in rural Muskogee County, when they interrupted a robbery at a relative's house. He also murdered Russell E. Lewis in a fatal carjacking in 1979 and is suspected of murdering the father of his former girlfriend in 1975. Despite killing at least three people, he was never convicted of the murder of Seward's wife and his sentence for Lewis's murder was overturned.