Commodore-in-Chief
Commodore-in-chief is an honorary appointment bestowed by the monarch of the Commonwealth realms on various members of the Royal Family. Previously, there have been honorary air commodores-in-chief in the British Royal Air Force and Royal Canadian Air Force, but no parallel affiliations with the navies of either country.
Commodore-in-Chief is an appointment rather than a rank. Holding an appointment of commodore-in-chief does not confer upon the holder the rank of commodore or indeed any other rank. Members of the Royal Family wear the uniform of their rank and are not issued with a different uniform for the appointment. However, Prince Edward, Earl of Wessex, who was appointed the Commodore-in-Chief of the Royal Fleet Auxiliary in 2006, has since appeared in the uniform of a RFA Commodore.
Canada
It was announced on 3 May 2015 that Charles, Prince of Wales, and Anne, Princess Royal, had been appointed by their mother, the Queen of Canada, as commodores-in-chief; Charles is Commodore-in-Chief and Anne Commodore-in-Chief. The appointment was timed to coincide with the 70th anniversary of the cessation of the Battle of the Atlantic.United Kingdom
Sir Jonathon Band, First Sea Lord, said on news of the appointments: "They firmly underline the strength of the bond between the Royal Family and the Armed Forces, not least the Naval Service in which so many members of the Royal family have served with great distinction over the years."| Holder | Naval rank | Appointment | Dates |
| The Prince of Wales | Hon. Admiral of the Fleet | Commodore-in-Chief, Plymouth Commodore-in-Chief, Aircraft Carriers | 2006 2019 |
| The Duchess of Cornwall | - | Commodore-in-Chief, Naval Medical Services, Commodore-in-Chief, Royal Navy Chaplaincy Service | 2006 |
| The Duke of Cambridge | Lieutenant Commander | Commodore-in-Chief, Scotland Commodore-in-Chief, Submarines | 2006 |
| The Duke of Sussex | Lieutenant Commander | Commodore-in-Chief, Small Ships and Diving | 2006 |
| The Duke of York | Hon. Vice-Admiral | Commodore-in-Chief, Fleet Air Arm | 2006 |
| The Earl of Wessex | - | Commodore-in-Chief, Royal Fleet Auxiliary | 2006 |
| The Princess Royal | Hon. Admiral | Commodore-in-Chief, Portsmouth | 2006 |
| Prince Michael of Kent | Hon. Vice-Admiral | Commodore-in-Chief, Maritime Reserves | 2006 |