Javier Lozano Barragán was a Mexican prelate of the Catholic Church who was president of the Pontifical Council for the Pastoral Care of Health Care Workers from 1997 to 2009. He was made a cardinal in 2003. He was auxiliary bishop of the Archdiocese of Mexico from 1979 to 1984 and bishop of Zacatecas from 1984 to 1997.

The Archdiocese of Mexico is a Latin Church ecclesiastical territory or archdiocese of the Catholic Church that is situated in Mexico City, Mexico. It was erected as a diocese on 2 September 1530 and elevated to an archdiocese on 12 February 1546. The archdiocese is one of the largest in the world, with over four million Catholics, surpassed only by Kinshasa, Guadalajara, São Paulo, Puebla de los Ángeles, Santiago de Guatemala, and Milan.