Ronald L. Green

Ronald L. Green
Green in February 2015
Bornc. 1964 (age 61–62)
AllegianceUnited States
BranchUnited States Marine Corps
Service years1983–2019
RankSergeant Major of the Marine Corps
ConflictsSomali Civil War
Iraq War
AwardsNavy Distinguished Service Medal
Legion of Merit (3)

Ronald L. Green (born c. 1964) is a United States Marine who served as the 18th Sergeant Major of the Marine Corps. He succeeded Micheal Barrett on February 20, 2015, and relinquished the post to Troy E. Black on July 26, 2019. As the Sergeant Major of the Marine Corps, Green was the highest-ranking non-commissioned officer in the United States Marine Corps. Green retired during the summer of 2019. As of March 2026, Green served as the sergeant major of the Marine Corps with the longest tenure, at 4 years and 156 days. Henry H. Black is the shortest-tenured, at 1 year and 304 days.