19-year-old Joseph Harrow hadn’t been seen since the weekend.
Joseph was reported missing by his family on Sunday evening, having last been seen in the early hours of Saturday morning.
Police say the body of a man was located today in Cow Lane in Harwell.
Superintendent Lis Knight, LPA Commander for South Oxfordshire and Vale of White Horse, said: “Enquiries have been ongoing for Joseph since he was reported missing, and very sadly, we have located a body this evening.
“Although formal identification has not yet taken place, we believe this to be Joseph, and his family have been made aware and are being supported by officers.
“Our thoughts are with them at this very distressing time.
“The man’s death is being treated as unexplained, but not suspicious, and a file will be prepared for the coroner.”