Chief petty officer

NaviesArmiesAir forces
Commissioned officers
Admiral of
the fleet
Field marshal or
General of the Army
Marshal of
the air force
AdmiralGeneralAir chief marshal
Vice admiralLieutenant generalAir marshal
Rear admiralMajor generalAir vice-marshal
CommodoreBrigadier or
brigadier general
Air commodore
CaptainColonelGroup captain
CommanderLieutenant colonelWing commander
Lieutenant
commander
Major or
Commandant
Squadron leader
LieutenantCaptainFlight lieutenant
Lieutenant
junior grade
or
sub-lieutenant
Lieutenant or
first lieutenant
Flying officer
Ensign or
midshipman
Second lieutenantPilot officer
Officer cadetOfficer cadetFlight cadet
Enlisted grades
chief petty officerWarrant officer or
sergeant major
Warrant officer
Petty officerSergeantSergeant
Leading seamanCorporal or
bombardier
Corporal
SeamanPrivate or
gunner or
trooper
Aircraftman or
airman
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A chief petty officer is a senior non-commissioned officer in many navies and coast guards.

Canada

Royal Canadian Navy chief petty officer 2nd class insignia

"Chief petty officer" refers to two ranks in the Royal Canadian Navy. A chief petty officer 2nd class (CPO2) (premier maître de deuxième classe or pm2 in French) is equivalent to a master warrant officer in the Army and Air Force, and chief petty officer 1st class (CPO1) (premier maître de première classe or pm1) is equivalent to a chief warrant officer in the Army and Air Force. In spoken references, chief petty officers may be addressed as "chief" but are never addressed as "sir".

Other Languages
Ελληνικά: Αρχικελευστής
français: Premier maître
українська: Чиф-петті офіцер