Chief Petty Officer

"Master Chief Petty Officer" (軍曹) is a military rank. Sometimes it is also translated as Petty Officer Second Class.

In One Piece, Chief Petty Officer is a lower marine rank below Master Chief Petty Officer and above Petty Officer.

Known Chief Petty Officers:
 * Gu
 * Helmeppo
 * Masshikaku
 * Minchi
 * Shine