John Oldfield may refer to:
John Oldfield (British Army officer) (1789–1863), English army officer John Oldfield (footballer) (1943–2002), English footballer John Oldfield (engineer) (1937–2002), British engineer and Ford executive John William Oldfield (1886–1955), figure in the commercial and public life in Ceylon John Frank Oldfield, American law enforcement pioneer in undercover investigations
See also Jack Oldfield (John Richard Anthony Oldfield, 1899–1999), British politician Ted Oldfield (John Edward Oldfield, 1918–2006), English footballer