John Turnbull
John Turnbull may refer to:
- John Turnbull (musician) (born 1950), English pop and rock guitarist and singer
- John Turnbull (field hockey) (1910–1944), American field hockey player
- John E. Turnbull, Canadian inventor of the first rolling wringer clothes washer, 1843
- John Walker Turnbull (1958–1999), English soldier who committed suicide after murdering his wife
- Jack Turnbull (1910–1944), American lacrosse player
- Jack Turnbull (footballer) (1885–1917), Australian rules footballer
- John Turnbull (actor) (1880–1956), British film actor