The Diocese of Plasencia (Latin: Dioecesis Placentina in Hispania) is a suffragan Latin diocese of the Catholic Church in the ecclesiastical province of the Metropolitan Archbishop of Mérida-Badajoz, in Extremadura, western Spain.

[1][2] Its cathedral episcopal see is the Catedral Nueva Gótica de Santa María (Gothic new cathedral), dedicated to the Virgin Mary, in the city of Plasencia, which also has the Romanesque former cathedral Catedral Vieja Románica de San Pablo, dedicated to St. Paul.

As per 2015, it pastorally served 261,853 Catholics (95.9% of 273,172 total) on 10,354 km2 in 200 parishes with 177 priests (160 diocesan, 17 religious), 360 lay religious (31 brothers, 329 sisters) and 2 seminarians.

From 1312 to 1326 the bishop Sancho Blázquez Dávila imported the ceremonial and the bureaucratic-administrative model of the royal court into his episcopal household.

[3] (all Roman Rite) [4]