The Roman Catholic Diocese of San Cristóbal de Las Casas (Latin: Dioecesis Sancti Christophori de las Casas) (erected 19 March 1539 as the Diocese of Chiapas, renamed 27 October 1964) is a suffragan diocese of the Archdiocese of Tuxtla. Its see is in San Cristóbal de las Casas in Chiapas. In November 2017 Rodrigo Aguilar Martínez was appointed new bishop on the resignation of Bishop Felipe Arizmendi Esquivel.