Samuel Heywood (1753–1828) was an English serjeant-at-law and a Chief Justice of the Carmarthen Circuit of Wales.
He was educated at Warrington Academy, and Trinity Hall, Cambridge, though as a Unitarian did not attend college chapel, and could not graduate as he would not subscribe to the Church of England's 39 Articles.
Based at Lancaster, Lancashire, he was appointed Serjeant-at-Law (1795) and also Chief Justice of the Carmarthen Circuit of Wales (1807).
They had at least one son and five daughters: On 29 August 1828, during one of his Welsh circuits, Heywood was seized with paralysis at Haverfordwest, Pembrokeshire and died on 11 September at nearby Tenby.
[2] His law library was sold at auction by R. H. Evans in London on 31 October 1829 (along with the books of Rev.