Sir Manuel Amadeo Esquivel, KCMG, PC (born 2 May 1940) is a Belizean politician. He was the leader of the United Democratic Party from 1983 to 30 August 1998. As Leader of the United Democratic Party, Esquivel was Prime Minister of Belize first from 17 December 1984 to 7 September 1989, and then again from 3 July 1993 to 30 August 1998.