Celso Luiz Nunes Amorim is a Brazilian diplomat who served as Minister of Foreign Relations from July 20, 1993 to December 31, 1994 under President Itamar Franco and again from January 1, 2003 to December 31, 2010 under President Luiz Inácio Lula da Silva. He was Minister of Defence from August 4, 2011 to December 31, 2014 under President Dilma Rousseff.
Before his appointment by Lula, Amorim served as Brazil's ambassador to the United Kingdom. On October 7, 2009, Amorim was named the "world's best foreign minister" by Foreign Policy magazine blogger David Rothkopf.