Vice-Admiral Sir William Essington KCB (c. 1753 – 12 July 1816) was an officer in the Royal Navy during the American War of Independence and the French Revolutionary and Napoleonic Wars.

Essington replaced Erasmus Gower as captain of HMS Triumph on 4 June 1797.

[2] On 23 April 1804, Essington was knighted and promoted to Rear Admiral of the Blue.

[3] He was present at the Battle of Copenhagen in 1807, flying his flag aboard HMS Minotaur.

He died at Nottingham Place on 12 July 1816 at the age of 63, with the rank of vice-admiral.