Residents contacted MKFM last night due to a large police presence near Opal Drive.
The death is being treated as unexplained, but not suspicious, and the man’s next of kin have been informed.
Thames Valley Police have confirmed that the body is that of a man who has been missing since Saturday.
A scenewatch that was in place has now been lifted and a file will be prepared for the coroner.
Thames Valley Police said, "Thames Valley Police officers sadly located the body of a man aged in his thirties just off the V11 Tongwell Street, near to Opal Drive, in Milton Keynes overnight."