Marcos Antônio de Araújo, 2nd Baron of Itajubá

Marcos Antônio de Araújo, 2nd Baron of Itajubá (Hamburg, 8 February 1842 – Berlin, 3 November 1897) was a Brazilian jurist and diplomat. He was the son of Marcos Antônio de Araújo, Viscount of Itajubá.

He began his career as professor of law at the Federal University of Pernambuco before becoming Consul General in Hamburg and later the second Ambassador in Hanover, Copenhagen, Berlin and finally in Paris.

He was a member of the tribunal convened to arbitrate in the Alabama claims.