An officer of
5 star rank is a very senior commander in many of the armed services holding a rank described by the
NATO code of
OF-10. The term is also used by some armed forces which are not NATO members. Typically, 5 star officers would hold the rank of
Admiral of the Fleet,
Grand Admiral,
Field Marshal,
General of the Army or, in the case of those air forces with a separate rank structure,
Marshal of the Air Force. Five-star ranks are extremely senior and thus very rare; the position only exists in a minority of countries and is usually only held by a very few officers during
wartime.
Marshal of the RAAF sleeve/shoulder insignia
UK Admiral of the Fleet Sleeve lace
UK Admiral of the Fleet Shoulder board
