Lieutenant-General William Hargrave (died 21 January 1751) was a British Army officer who served as the governor of Gibraltar from 1740 to 1749.

Hargrave was commissioned into Viscount Charlemonte's Regiment of Foot in 1694.

[1] He was also active at the Battle of Sheriffmuir in 1715 during the Jacobite rising.

[1] That same year he was instructed to proceed to Portsmouth and embark with reinforcements for Jersey where the Lieutenant Governor had failed to contain a riot.

[2] In 1739 he became Colonel of The Royal Fusiliers[1] just before he became Governor of Gibraltar in 1740.