Sir Vaughan Allen Lewis, is a Saint Lucian politician and a former member of the United Workers’ Party (UWP). He served for a brief period as the fourth Prime Minister of Saint Lucia following the resignation of John Compton. Lewis, a former director of the Organisation of Eastern Caribbean States, assumed the office of Prime Minister on April 2, 1996. He also served as Minister of Finance, Planning and Development, and Minister of External Affairs. In elections that followed on May 23, 1997, Lewis and the UWP suffered a huge setback, losing all but one of their seats in Parliament.

Compton defeated Lewis for the UWP leadership in a party conference in Soufrière on March 13, 2005. Following this defeat, Lewis resigned from the United Workers Party and joined the Saint Lucia Labour Party. On 7 September 2006, the executive of the Saint Lucia Labour Party endorsed Dr. Vaughan Lewis as its candidate for the Castries Central constituency in the December 2006 general elections.

Lewis failed in his bid to win the Castries Central parliamentary seat from the UWP candidate Richard Frederick in the 2006 general elections held on December 11. Lewis returned to academia and was a Professor at the University of the West Indies, St Augustine Campus in Trinidad and Tobago. He has returned to St. Lucia occasionally to appear on the platform of the St Lucia Labour Party.

He is married to lawyer Shirley Lewis, a Barbadian native and former Mayor of Castries. He is part of the prominent Lewis clan, son of St. Lucia’s first Governor General, Sir Allen Lewis, and nephew of Sir Arthur Lewis, Nobel prize winner in economics.

In February 2016, to mark St Lucia Independence Day, he became one of the first knights of the Order of Saint Lucia, granting him the title of ‘Sir’.