Alfred Tristram Lawrence, 1st Baron Trevethin, PC (24 November 1843 – 3 August 1936) was a British lawyer and judge.

Lawrence was recorder for the Royal Borough of Windsor from 1885 to 1904, when he was appointed a Judge of the High Court of Justice (King's Bench Division) and knighted.

[2] Former Aston Villa player Herbert Kingaby had brought legal proceedings against his old club for preventing him from playing.

There existed a convention that the Attorney-General had the right of reverter to the post if a vacancy arose but David Lloyd George was unwilling to part with the services of Sir Gordon Hewart.

He was sworn of the Privy Council at the same time and in August of the same year he was raised to the peerage as Baron Trevethin, of Blaengawney in the County of Monmouth.

A keen angler in later life,[4] he suffered a seizure[1] while fishing in the River Wye above Builth Wells, fell in and drowned before he was taken out of the water.

Geoffrey Lawrence also became a noted lawyer and was himself raised to the peerage as Baron Oaksey, before succeeding his elder brother in the barony of Trevethin in 1959.