| Honorific-Prefix: | The Right Honourable |
| The Lord Heycock | |
| Honorific-Suffix: | CBE |
| Birthname: | Llewellyn Heycock |
| Birth Date: | 12 August 1905 |
| Birth Place: | Margam, Wales |
| Nationality: | Welsh |
| Party: | Labour |
| Occupation: | Politician |
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".[1] Despite having himself received little formal education, he became Chairman of the Glamorganshire Education Committee.
He was first elected to Glamorgan County Council in 1937 at a by-election following the re-election of long-serving miners' agent John Thomas of Pontrhydyfen as an alderman. Heycock was chosen as Labour candidate at the expense of Joe Brown, a former mayor of Port Talbot and a close associate of Ramsay Macdonald when he was MP for Aberavon. Brown resigned from the Labour Party in protest and stood as an Independent.[2] However, Heycock held the seat by 569 votes.
In April 1967 he was elected as a county councillor to Glamorgan County Council for the Port Talbot East ward.[3] In 1973 he was elected unopposed as councillor for Margam Central on the new West Glamorgan County Council.[4]
He became a Commander of the Order of the British Empire (CBE) in 1959, a Commander of the Order of the Hospital of St. John of Jerusalem (CStJ) in April 1967, and a life peer on 10 July 1967 as Baron Heycock, of Taibach in the Borough of Port Talbot.
| Escutcheon: | Or on a Chevron Gules between three Wheels winged Sable two Chevronels Argent on a Chief Azure between two Cockatrices' Heads erased Or an Open Book proper bearing the word "Scientia" in Letters Sable |
| Crest: | On a Cap of Maintenance Gules turned up Ermine a Demi Dragon Gules holding a Wheel Or charged in the centre with a Rose Gules thereon a Rose Argent barbed and seeded proper. |
| Supporters: | Dexter: a Dragon Gules gorged with a Baron's Coronet proper pendent therefrom by a Ring Or a Winged Wheel Sable; Sinister: a Cockatrice Gules gorged with a Baron's Coronet proper pendent therefrom by a Ring Or a Portcullis chained of the last. |
| Motto: | Semper Civibus Meis Servio |