Morris Wilson is a former Kansas resident whose photograph was entered into evidence in the federal murder trial of convicted Oklahoma City Bombing accomplice Terry Nichols.

A witness, Charles Farley, of Wakefield, Kansas, who worked at Fort Riley as a mechanic, testified that Wilson was among a group of men present at Geary State Lake around 6 p.m. on April 18, 1995, the day before the bombing. Federal prosecutors presented evidence that the bomb was assembled at the state fishing lake at about that same time. Nichols later testified in a state trial, in a deal that let him avoid facing a death sentence, that he and Timothy McVeigh acted alone in assembling the bomb. In the book American Terrorist McVeigh claims he assembled the bomb in a storage locker.

Farley contacted the FBI following the bombing after seeing Wilson appear on television as a leader of the Kansas Militia.

Farley testified at Nichols' federal trial that he saw Wilson among a group of men milling around several vehicles including a flat-bed truck laden with sacks and a Ryder truck similar to the one used to deliver the bomb. Sheriff Kenneth Lippert testified that Wilson was in custody at the time Farley said he was at the fishing lake. Lippert, who was Undersheriff of Osage County south of Topeka, said Wilson was arrested April 17 for carrying a concealed weapon. Wilson was arrested, he said, after he was found carrying a concealed .25 caliber handgun while on armed patrol of a pig farm.

Wilson was said to be at the pig farm acting as a member of the Kansas Unorganized Citizens Militia, which reportedly disbanded soon after the bombing. Press accounts say he later moved to Loveland, Colorado.