Lord Peter Lilley is a British life peer and former Conservative cabinet minister who served in the governments of Margaret Thatcher and John Major. Born in Kent in August 1943, he studied economics at Clare College, Cambridge, before entering politics. He represented St Albans in Parliament from 1983 and then Hitchin and Harpenden from 1997 until his retirement from the Commons in 2017. During his ministerial career, Lilley served as Trade and Industry Secretary between July 1990 and April 1992, before taking on the role of Social Security Secretary from April 1992 to May 1997, during which time he introduced Incapacity Benefit.

A longstanding critic of the European Union, Lilley backed Brexit during the 2016 referendum and supported the Eurosceptic group Leave Means Leave. Following his departure from the House of Commons, he was nominated for a peerage in May 2018 and now sits in the House of Lords. Lord Lilley writes commentary for Comment Central.