Karsten Heckl

Karsten Heckl
Birth nameKarsten Selby Heckl
NicknameHazel
Born
AllegianceUnited States
BranchUnited States Marine Corps
Service years1988–2024
RankLieutenant General
Commands
Conflicts
Awards
Alma materGeorgia State University (BA)

Karsten Selby Heckl (born September 2, 1964) is a retired United States Marine Corps lieutenant general who last served as the deputy commandant for combat development and integration and commanding general of the Marine Corps Combat Development Command, from 2021 to 2024. Heckl previously served as the commander of I Marine Expeditionary Force. He previously served as commander of the 2nd Marine Aircraft Wing.

On 30 October 2023, Heckl was performing the duties of commandant of the Marine Corps when Commandant Eric Smith was hospitalized, until he was relieved of those duties when General Christopher J. Mahoney was sworn in as the assistant commandant of the Marine Corps on 3 November 2023.