Master chief petty officer, a military enlisted rate in the United States Navy and Coast GuardMaster Chief Petty Officer of the Coast Guard, a unique non-commissioned rank and position in the United States Coast GuardMaster Chief Petty Officer of the Navy, a unique non-commissioned rank of the United States NavyMaster Chief MusicianMaster Chief Hospital CorpsmanMaster Chief (Halo), a character from the Halo series reference
