The Diocese of Yopal (Latin: Yopalensis) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Colombia. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Tunja.

Its cathedra is in the Catedral San José, dedicated to Saint Joseph, in the episcopal see of Yopal, Casanare Department.

• Established on 29 October 1999 as Diocese of Yopal, on reassigned territory split off (like the Apostolic Vicariate of Trinidad) from the suppressed Apostolic Vicariate of Casanare.

As of 2014^[update], it pastorally served 294,200 Catholics (96.5% of 305,000 total) on 17,725 km² in 31 parishes and 19 missions with 48 priests (41 diocesan, 7 religious), 11 deacons, 23 lay religious (11 brothers, 12 sisters) and 23 seminarians.

• List of Catholic dioceses in Colombia
• Roman Catholicism in Colombia