Admiral of the fleet (Australia)

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Admiral of the fleet
Shoulder and sleeve insignia
Country	Australia
Service branch	Royal Australian Navy
Abbreviation	AF
Rank group	General officer
Rank	Five-star
Non-NATO rank	OF-10
Pay grade	O-11
Formation	2 June 1938 (1938-06-02) (ceremonial)
Next lower rank	Admiral
Equivalent ranks	Field marshal (Army) Marshal of the Air Force (RAAF)

Admiral of the fleet (AF) is the highest rank in the Royal Australian Navy (RAN), but is a ceremonial, not active or operational, rank. It equates to the NATO rank grade OF-10. Equivalent ranks in the other services of the Australian Defence Force are field marshal and marshal of the Royal Australian Air Force. Like those ranks, admiral of the fleet is a five-star rank.

The subordinate naval rank, and highest active rank in the RAN, is admiral. This rank is only held when the Chief of the Defence Force is a naval officer. The highest continuously-filled rank in the RAN is vice admiral, held by the Chief of Navy.