John Montgomery Dalton (November 9, 1900 – July 7, 1972) was an American attorney and Democratic politician from the state of Missouri.

[1] One brother, Sidna P. Dalton, would serve as Chief Justice of the Missouri Supreme Court.

Dalton died July 7, 1972, in Jefferson City, Missouri, and is buried in Oak Ridge Cemetery in Kennett.

[citation needed] John Dalton first entered statewide politics in 1952, running for and winning the first of two consecutive terms as Missouri Attorney General.

Governor Dalton signed legislation requiring all passenger vehicles in Missouri to have seat belts and established a drivers license points system for traffic violations.