Cristián Barros Melet (born 9 October 1952) is a Chilean diplomat who was the Permanent Representative of Chile to the United Nations in New York since 16 April 2014 to 2018.

Born in Santiago de Chile, Barros was educated at Saint Gabriel's School.

After graduating from Law at the University of Chile in Santiago, Barros also attended the Andrés Bello Diplomatic Academy in 1973.

From 1989 to 1990 he was First Secretary in the Embassy of Chile in Canada, when he became Chief of Staff to the Director General of Foreign Policy.

In 2014, Barros was appointed to succeed Octavio Errázuriz as Permanent Representative of Chile to the United Nations and presented his credentials to Secretary-General Ban Ki-moon on 16 April 2014.