Marco Antonio Cornez Bravo (born October 15, 1957 in Santiago) is a Chilean retired football goalkeeper.
He played for Club Deportivo Palestino, Universidad Católica, Club de Deportes Antofagasta, Everton de Viña del Mar and Municipal Iquique, scoring 24 goals between 1975 and 1998.
Cornez was an unused reserve goalkeeper for Chile at the 1982 FIFA World Cup.
His international career lasted from 1982 to 1995, during which time he won 20 caps.
He discovered Christiane Endler.