Colonel Alexander Perceval (1787 – 9 December 1858) was an Irish politician. He was the eldest surviving son of Rev. Philip Perceval of Temple House, Ballymote, Sligo. He succeeded his father in 1800. He sat in the House of Commons for Sligo County from 1831 to 1841, when his growing financial difficulties compelled him to resign his seat. He served briefly as a Junior Lord of the Treasury in Sir Robert Peel's second government (1841).He was Sergeant-at-Arms of the House of Lords from 1841 until his death.