In the Canadian Forces, a Flag Officer (French: Officier général, "general officer") is the naval equivalent of a General Officer of the army or air force, and comprises the ranks of Commodore, Rear-Admiral, Vice-Admiral, and Admiral.
The rank of Flag Officer was bestowed on senior Navy Captains who were assigned to lead a squadron of vessels in addition to command of their own ship.
The 19th century rank of Flag Officer was considered strictly temporary and became obsolete upon the creation and wide spread usage of the equivalent naval rank of Commodore.