Captain (Royal Navy)

A Royal Navy captain's rank insignia
HMS Vanguard's Port ship's company, Divisions, Jan 2013 01.jpg
A Royal Navy captain's rank insignia (left, with a lieutenant at right) during divisions conducted at HMNB Clyde in January 2013.
CountryUnited Kingdom
Service branch
NATO rank codeOF-5
Next higher rankCommodore
Next lower rankCommander
Equivalent ranks

Captain (Capt) is a senior officer rank of the Royal Navy. It ranks above commander and below commodore and has a NATO ranking code of OF-5. The rank is equivalent to a colonel in the British Army and Royal Marines, and to a group captain in the Royal Air Force. There are similarly named equivalent ranks in the navies of many other countries.