Laurence Shirley, 4th Earl Ferrers (18 August 1720 – 5 May 1760) was an English nobleman, notable for being the last peer to be hanged, following his conviction for murdering his steward.
Lord Ferrers, descendant of an ancient and noble family, was the eldest son of the Honourable Laurence Ferrers, himself the third son of the first Earl Ferrers. At the age of twenty, he quit his estates and Oxford education, and began living a debauched life in Paris. At the age of twenty-five he inherited his title from his insane uncle the 3rd Earl Ferrers, and with it estates in Leicestershire, Derbyshire and Northamptonshire. He lived, however, at Staunton Harold Hall in northwest Leicestershire. In 1752, he married Mary, the youngest sister of Sir William Meredith, 3rd Baronet. Ferrers was also a cousin to Selina, Countess of Huntingdon, the prominent Methodist lady and supporter of George Whitefield, though he was not involved in the Methodist revival.
It was said that there was insanity in his family, and from an early age his behaviour seems to have been eccentric, and his temper violent, though he was quite capable of managing his business affairs. Significantly, in 1758, his wife obtained a separation from him for cruelty, which would have been rare for the time. She would not accept her husband's drinking and womanizing, and was particularly upset by his illegitimate children. The old family steward, Johnson, may have given evidence on Mary's behalf and was afterwards tasked with collecting rents due to her. She was married again, on 28 March 1769, to Lord Frederick Campbell. Mary later died in a fire at her country seat, Coomb Bank, Kent, on 25 July 1807.