Nicanor Duarte, Paraguayan lawyer and politician, President of Paraguay

Óscar Nicanor Duarte Frutos (born 11 October 1956) is a Paraguayan politician who served as President of Paraguay from 2003 to 2008. In 2013, President Horacio Cartes appointed Duarte as Ambassador to Argentina, a diplomatic posting he held from 2013 until 2016. Duarte currently holds the title of Senator for life.

Duarte, who attended the Mennonite church, was Paraguay's first non-Catholic president.