William Innes Pocock (June 1783 – 13 March 1836) was a British Royal Navy lieutenant, artist and writer.
He entered the Royal Navy in 1795, served more especially in the East and West Indies, and from 1807 to 1810, in the St. Albans, made three several voyages to the Cape of Good Hope, St. Helena, and China.
In the last of these the convoy was much shattered in a storm off the Cape of Good Hope, and was detained at St. Helena to refit.
On 1 Aug. 1811 Pocock was promoted to be lieutenant of the HMS Eagle, with Captain Charles Rowley, and in her saw much active boat-service in the Adriatic.
He appears to have amused his leisure with reading, writing, and painting; he is described as a good linguist, and is said to have published in 1815 Naval Records: consisting of a series of Engravings from Original Designs by Nicholas Pocock, illustrative of the principal Engagements at Sea since the Commencement of the War in 1793, with an Account of each Action (Watt, Bibl.