Officers were alerted to the discovery of a body in the Oswin Avenue area of Balby at 11am yesterday.
They believe it to be the body of 54-year-old John Parker, who was reported missing from his home in Warmsworth Road, Balby, on Sunday, October 29.
A South Yorkshire Police spokesman said: "A body believed to be that of missing man John Parker, has been found in Balby, Doncaster.
"Officers were called to reports of a man’s body being found in the Oswin Avenue area at 11am yesterday.
"Formal identification and a post mortem has yet to take place but there are believed to be no suspicious circumstances and John’s family has been informed.
"John was reported missing from his Balby home on Sunday, October 29."