The Commander-in-Chief, North Sea,[1] was senior appointment and an operational command of the British Royal Navy originally based at Great Yarmouth from 1745 to 1802 then at Ramsgate from 1803 until 1815.

[5] The fleet is most well known for its key role in the Battle of Camperdown against the Dutch Navy on 11 October 1797, which resulted in a decisive British victory.

The fleet was also involved in trade protection, with the advent of the looming Napoleonic Wars, and later, it turned to the blockading of enemy ports.

The fleet also played an instrumental part in the British anti-invasion preparations of 1803–05 in response to Napoleon's planned invasion of the United Kingdom.

[6][7][additional citation(s) needed] The office was abolished in 1815, and its former duties were taken over by the Commander-in-Chief, The Nore whose role and geographic area of command was re-defined by the Admiralty.