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.^[1]

He sat in the House of Commons for County Sligo 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.^[1]

He died at Chester Street, London, on 9 December 1858 and was buried at West Norwood Cemetery. He had married Jane Anne, the daughter of Col. Henry Peisley L’Estrange of Moystown, Cloghan, King's County and had a large family. Due to his extravagance Temple House had to be sold but was bought back for the family by his third son, also Alexander (1821-1866).^[1]