| Martyrs of Christ the King Cathedral | |
| Other Name: | Catedral Mártires de Cristo Rey |
| Location: | Piedras Negras |
| Country: |  Mexico |
| Denomination: | Roman Catholic Church |
| Spire Quantity: | Piedras Negras, Coahuila |
| Honpriest: | Piedras Negras, Coahuila |
| Organist: | Piedras Negras, Coahuila |
| Parishadmin: | Piedras Negras, Coahuila |
The Martyrs of Christ the King Cathedral[1] (also Piedras Negras Cathedral; Spanish; Castilian: Catedral Mártires de Cristo Rey)[2] is a Catholic church that serves as the cathedral of the city of Piedras Negras to the northeast of the state of Coahuila in Mexico,[3] near the border with the Texan city of Eagle Pass. Located inside the, it is one of the modern jewels of the city.
In March 2008, the Martyrs of Christ the King Cathedral, home of the Diocese of Piedras Negras, was headed by the Apostolic Nuncio Christophe Pierre, the Cardinal of Monterrey Francisco Robles Ortega and seventeen bishops, in addition to the presence of the hierarchy of the Catholic Church in Mexico.