Charles Patrick Fleeming Jenkin, Baron Jenkin of Roding, PC (7 September 1926 – 20 December 2016) was a British Conservative politician, serving as a cabinet minister in Margaret Thatcher's first government.

Jenkin was educated at the Dragon School in Oxford, Clifton College in Bristol and Jesus College, Cambridge. He became a barrister, called by the Middle Temple in 1952, and company director. He was a councillor on Hornsey Borough Council from 1960–63.

The following year, Jenkin became the Conservative for Wanstead and Woodford. From 1965, he served as an Opposition spokesman on economic and trade affairs. He was a member of the Bow Group from 1951. In January 1974, he became Minister for Energy just weeks before the Conservatives fell from office, and participated in many ways in the government of Margaret Thatcher. He served as Secretary of State for Social Services from 1979 to 1981, then as Secretary of State for Industry until 1983, and finally as Secretary of State for the Environment from 1983 to 1985.

Jenkin retired from the Commons at the 1987 general election. He was elevated to the House of Lords as a life peer with the title Baron Jenkin of Roding, of Wanstead and Woodford in Greater London. Whilst in the Lords, Jenkin was interviewed in 2012 as part of The History of Parliament's oral history project. He was noted for his contribution to the debate during the passage of the Marriage (Same Sex Couples) Act 2013. On 6 January 2015 he retired from the House of Lords pursuant to section 1 of the House of Lords Reform Act 2014, the first peer to do so. He died on 20 December 2016 aged 90.

Jenkin was president of the Foundation for Science and Technology, and a vice-president of the Local Government Association. His son, Bernard, is the Conservative Member of Parliament for Harwich and North Essex. Lord Jenkin's grandfather, Frewen, was the first Professor of Engineering Science at the University of Oxford from 1908 in the newly created Department of Engineering Science, and the namesake of the Jenkin Building at Oxford. Lord Jenkin's great-grandfather was the scientist Fleeming Jenkin.