Edward Southwell, 20th Baron de Clifford (6 June 1738 – 1 November 1777) was a British politician.
He was the son of Edward Southwell by his wife Katherine, daughter of Edward Watson, Viscount Sondes.[1]
He was elected to the British House of Commons as Member of Parliament for Bridgwater on 28 March 1761, sitting until 1763.[2] On 23 November 1763 he was returned for Gloucestershire, sitting until 1776.[3] He also represented Kinsale in the Irish House of Commons from May 1761 to 1768.[4]
On 17 April 1776 the abeyance of the Barony of Clifford was terminated in his favour, and he entered the British House of Lords as 20th Baron de Clifford.[1][5]