John Calvin Munn (17 October 1906 – 14 April 1986) was the 8th Assistant Commandant of the Marine Corps and United States Naval Aviator.

Munn was born October 17, 1906, in Prescott, Arkansas, and after graduating from high school in 1923, he attended the United States Naval Academy.

After graduating on 2 June 1927, he was commissioned as a second lieutenant, he attended Officers' Basic Course at the Philadelphia Navy Yard and was assigned to the 2nd Marine Brigade to participate in the United States occupation of Nicaragua.

Returning to the United States in September 1929, he was assigned to the guard force at Herbert Hoover's summer camp near Criglersville for three months, then was ordered to attend aviation training at Hampton Roads.

He was promoted to major in July 1941, and would embark upon USS Ranger (CV-4) several times until VMO-151 sailed for San Diego in December upon the United States's entry into World War II.

While in Korea, he was awarded his second Legion of Merit and returned home in April 1954 to assume command of Marine Corps Air Station El Toro.

Known decorations and medals include: This article incorporates public domain material from websites or documents of the United States Marine Corps.