What is the highest enlisted rank in the Marine Corps?

The highest enlisted rank in the Marine Corps is the Sergeant Major of the Marine Corps. This position is unique as it serves as the senior enlisted advisor to the Commandant of the Marine Corps, providing guidance on matters affecting enlisted personnel across all ranks. The Sergeant Major of the Marine Corps is a key figure in ensuring that the voice of enlisted Marines is represented at the highest levels of command and in policy-making, making it an essential role within the structure of the Marine Corps.

The rank embodies leadership, experience, and extensive knowledge, required for managing and influencing the enlisted ranks. This position is only held by one Marine at a time, which further underscores its significance as the pinnacle of enlisted service in the Marine Corps hierarchy. In addition to this, while ranks like Master Gunnery Sergeant and Gunnery Sergeant are highly respected and come with their own responsibilities, they do not carry the same level of seniority and influence as the Sergeant Major of the Marine Corps.