Llewellyn Heycock, Baron Heycock CBE (12 August 1905 – 13 March 1990) was a Welsh local politician, who became a life peer in 1967. Heycock was born in Margam and began his career as an engine driver with the Great Western Railway. He subsequently rose to a powerful position in South Wales local politics through his trade union connections and membership of the Labour Party, a "personality of transcendent authority". Despite having himself received little formal education, he became Chairman of the Glamorganshire Education Committee.