Marco Antonio Órdenes Fernández (born 29 October 1964) is a native of Chile and a former prelate of the Catholic Church.
He was Bishop of Iquique from 2006 to 2012.
When appointed at the age of 42, he was the youngest bishop in the history of Chile.
Accusations that he had sexually abused minors forced his resignation in 2012.
Civil procedures concluded when prosecutors could not establish a case against him, but church proceedings ended with his removal from the clerical state in 2018.