Roy Harris Jenkins, Baron Jenkins of Hillhead OMPC (11 November 1920 – 5 January 2003) was a British politician and writer.

The son of a Welsh coal miner, Roy Jenkins later became a union official and Labour MP. He also served with distinction in World War II. Elected to Parliament as a Labour member in 1948, he served in several major posts in Harold Wilson's First Government. As Home Secretary from 1965–1967, he sought to build what he described as "a civilised society", with measures such as the effective abolition in Britain of capital punishment and theatre censorship, the decriminalisation of homosexuality, relaxing of divorce law, suspension of birching and the liberalisation of abortion law. As Chancellor of the Exchequer from 1967–1970, he pursued a tight fiscal policy. On 8 July 1970, he was elected Deputy Leader of the Labour Party, but resigned in 1972 because he supported entry to the Common Market, while the party opposed it.