The Roman Catholic Diocese of San Cristóbal 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.
The Roman Catholic Diocese of San Cristóbal de Las Casas, initially created on 19 March 1539 as the Diocese of Chiapas, was later re-designated in 1964 and now operates as a subordinate diocese within the administrative framework of the Archdiocese of Tuxtla.