Which rank is associated with the highest pay grade of O-10 in the Marine Corps?

The rank associated with the highest pay grade of O-10 in the Marine Corps is General. This rank is the highest officer rank in the Marines and signifies a position of significant leadership and responsibility. A General typically commands a Marine Corps division or higher-level units and may hold positions within the senior leadership of the Marine Corps and Department of Defense.

Understanding military ranks and their associated pay grades is crucial for recognizing the structure and hierarchy within the Marine Corps. The other ranks mentioned, such as Lieutenant Colonel (O-5), Major General (O-8), and Colonel (O-6), are lower on the rank scale, each representing specific levels of command and responsibility within the Marine Corps, but none of them reach the highest echelon represented by the O-10 pay grade of General.