Sir David Anthony Andrew Amess (26 March 1952 – 15 October 2021) was a British politician who served as Member of Parliament (MP) for Southend West from 1997 until his murder in 2021. He previously served as MP for Basildon from 1983 to 1997. A member of the Conservative Party, he was a Catholic with socially conservative political views, and was in favour of Britain leaving the European Union.