Royal Navy Officer Ranks

Command and Administration
Royal Navy
Board of Admiralty
Admiralty War Staff (post-1912)
·Operations Division
·Intelligence Division
·Mobilisation Division
·Trade Division (1914-)
·Anti-Submarine Division (1916-)
Departments of the Admiralty
Department of the Director of Naval Ordnance
Department of the Director of Naval Equipment (1912-)
Victualling Department
Naval Mobilisation Department (Royal Navy) (1900-1912)
Navigation Department (Royal Navy) (1913-)
Naval Intelligence Department (1887-1912)
Naval Construction Department
Department of the Controller of the Navy
Engineering Department
Dockyards Department
Dockyard Expense Accounts Department
Naval Store Department
Works Department
Compass Branch
Air Department
Coastguard and Reserves Branch
Engineer Branch
Dockyard Branch
Transport Department
Accountant-General's Department
Naval Medical Service
Contract and Purchase Department
Greenwich Hospital Department
Naval Education Office
Structure
Board of Admiralty
Admiralty War Staff
Royal Naval Colleges
Royal Naval Dockyards
Royal Naval War Staff
Royal Naval Establishments
Structure
Fleets and Squadrons
Aircraft squadrons
Infantry units
Equipment
Royal Navy ships
Royal Navy ship classes
Personnel
Flag Officers
Officer ranks
Lower Deck Ranks and Ratings
History and traditions
History of the Royal Navy
Sunset
Heart of Oak
Band of the Royal Marines
Imperial Navy League
Imperial Maritime League

Line Officers

Paymaster-in-Chief - equivalent to Captain
Fleet Paymaster - equivalent to Commander
Staff Paymaster - equivalent to Lieutenant-Commander
Paymaster - equivalent to Lieutenant-Commander
Assistant Paymaster - over 4 years equivalent to Lieutenant, under 4 equivalent to Sub-Lieutenant

Military Branch	Without the curl, but with; (until)
Military Branch	Purple between stripes (1915)	Scarlet between stripes (1918)	White between stripes (1918)	Light Blue between stripes (1918)
Admiral of the Fleet	-	-	-	-
Admiral	-	-	-	-
Vice- Admiral	Engineer-in-Chief	Medical Director-General	-	-
Rear- Admiral	Engineer Rear-Admiral	Surgeon-General	-	-
Commodores, 1st and 2nd Class	-	-	-	-
Captain of three years' seniority	Engineer Captain of eight years' service in that rank	Deputy Surgeon-General	Paymaster-in-Chief Secretary to C-in-C with five years' service in that rank	Chief Naval Instructor (rank established 1917)
Captain under three years' seniority	Engineer Captain under eight years' service in that rank	Deputy Surgeon-General	Paymaster-in-Chief Secretary to Admiral of the Fleet according to service in that rank.	Chief Naval Instructor (rank established 1917)
Commander	Engineer Commander	Fleet Surgeon	Fleet Paymaster Secretary to C-in-C	Naval Instructor of 15 years' seniority
Lieutenant- Commander	Engineer Lieutenant-Commander	Staff Surgeon	Staff Paymaster Secretary to Commodore, 1st Class and Flag Officers	Naval Instructor of 8 years' seniority
Lieutenant	Engineer Lieutenant	Surgeon	Assistant Paymaster of four years' seniority Secretary to Commodore, 2nd Class	Naval Instructor under 8 years' seniority
Sub-Lieutenant	Engineer Sub-Lieutenant	-	Assistant Paymaster under four years' seniority	-