John McDowell (disambiguation)

John McDowell may refer to:
 * John McDowell (born 1942), South African philosopher
 * John McDowell (American football) (born 1942), American football player
 * John McDowell (bishop) (born 1956), bishop of Clogher in the Church of Ireland
 * John McDowell (footballer) (born 1951), English footballer
 * John McDowell (Manitoba politician) (1894–1980), Canadian politician from Manitoba
 * John McDowell (Pennsylvania politician) (1902–1957), American politician from Pennsylvania
 * John A. McDowell (1853–1927), American politician from Ohio
 * John Bernard McDowell (1921–2010), auxiliary bishop of the Roman Catholic Diocese of Pittsburgh, Pennsylvania
 * John G. McDowell (1794–1866), New York politician
 * John Holmes McDowell (born 1946), folklorist
 * John William McDowell (c. 1922–2006), Northern Irish political activist
 * Johnny McDowell (1915–1952), American racecar driver