John Powell
John Powell is the name of the following people:
- John Powell (politician) (1809–1881), Canadian politician, Mayor of Toronto
- John Powell (pianist) (1882–1963), American pianist and composer
- John Powell (middle distance runner) (1910–1982), British middle distance runner
- John Powell (discus thrower) (born 1947), American discus thrower
- John Powell (film composer) (* 1963), English film music composer
- John Powell-Jones (1925–2012), British diplomat
- John U. Powell (1865-1935), British classical philologist
- John Wesley Powell (1834–1902), American geologist and cartographer