The Fleet Commander is a senior Royal Navy post, responsible for the operation, resourcing and training of the ships, submarines and aircraft, and personnel, of the Naval Service.

The Vice-Admiral incumbent is required to provide ships, submarines and aircraft ready for operations, and is based at Navy Command Headquarters.

The post was created in April 2012 following a reorganisation of the Royal Navy and a re-designation of the former role of Commander-in-Chief Fleet.

[1] The Fleet Commander's purpose is to provide ships, submarines and aircraft ready for any operations that the Government requires.

[1] The Fleet Commander's major subordinates included as of September 2020:[2] The previous post of Assistant Chief of the Naval Staff (Training)/Flag Officer Sea Training[5] was disestablished in May-June 2020.