Joseph H Leonard (August 28, 1876–September 23, 1946) was a United States Marine private received the Medal of Honor for actions during the Philippine–American War.

Leonard joined the Marine Corps from Brooklyn in June 1897, and was honorably discharged five years later.

He later served during World War I from April 1918 to July 1919.

[1] Rank and organization: Private, U.S. Marine Corps.

Citation: For distinguished conduct in the presence of the enemy in battles, while with the Eighth Army Corps on 25, 27, and March 29, and on April 4, 1899.