The Master Chief Petty Officer of the Navy (MCPON) is the senior enlisted person in the Navy. The MCPON serves as the senior enlisted leader of the Navy, and as an advisor to the Chief of Naval Operations and to the Chief of Naval Personnel in matters dealing with enlisted personnel and their families.

The MCPON is also an advisor to the many boards dealing with enlisted personnel issues; is the enlisted representative of the Department of the Navy at special events; may be called upon to testify on enlisted personnel issues before Congress; and, maintains a liaison with enlisted spouse organizations.