What is the title of an E-9 special rank in the Navy?

The title of an E-9 special rank in the Navy is "Master Chief Petty Officer of the Navy." This rank represents the highest enlisted position in the Navy and is a key leadership role. The individual who holds this title serves as the senior enlisted advisor to the Chief of Naval Operations and is responsible for providing guidance and advice on issues affecting enlisted personnel across the Navy. This rank is distinct from other E-9 ranks because it carries specific responsibilities for representing the interests and welfare of all Navy personnel at the highest levels of command.

The other titles mentioned are also significant but do not hold the same special status. "Master Chief Petty Officer" is a standard E-9 rank, while "Fleet Admiral" is an O-10 rank and the highest possible commissioned officer rank in the Navy, a title not regularly held in peacetime. "Chief Petty Officer" represents an E-7 rank and serves a different role within the Navy's enlisted ranking structure.