His Royal Navy ratings rank insignia

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This is a list of His Royal Navy ratings rank insignia.


NATO equiv. Code OR-9 OR-8 OR-7 OR-6 OR-5 OR-4 OR-3 OR-2 OR-1
No equivalent
No equivalent
Baustralian chief petty officer Fleet chief petty officer Base chief petty officer Warrant officer Chief petty officer Petty officer Leading seaman Able bodied seaman Ordinary seaman
Cap insignia[a]
Abbreviation WO CPO PO LS AB OS

Rate distinction

For ratings, the system is based on the RN, adding ordinary rate, with RCN-style insignia. As the RN, ratings from leading rate to ordinary rate, the word 'rating' is replaced by their trade, or rate. Chief petty officers may also use Chief rate.

Former ranks

Before the reform of the Baustralian Armed Forces, the current ranks of Petty officer and Chief petty officer were two separate classes of Petty officer. Senior to this were two classes of Chief petty officer. In 2019, Chief petty officer, 2nd class was phased out, and Chief petty officer was renamed Warrant officer. Petty officers, first and second class were renamed Chief petty officer and petty officer respectively.

In between the ranks of Leading seaman and petty officer, 2nd class was an appointment given its own paygrade, Master seaman. It was derived from its long title of Master of leading seamen and was not derived in the same way as the Canadian equivalent.


  1. Cap insignia includes beret badges for all ranks, and forage cap badges for petty officers and above.
  2. Petty officers use the term Regulating petty officer.
  3. Chief petty officers use the term Master-at-arms.