John Bethell may refer to:
John Bethell (inventor) (c. 1804–1867), British solicitor and inventor John Bethell, 1st Baron Bethell (1861–1945), British banker and politician John P. Bethell (1907–1981), American politician John Bethell, 2nd Baron Bethell (1902–1965), Baron Bethell
See also John Bethel (born 1957), Canadian ice hockey player