The Roman Catholic Diocese of Lugo (Latin: Dioecesis Lucensis in Hispania) is a Latin Church see of the Catholic Church within Galicia, in north-western Spain, and one of the four suffragans in the ecclesiastical province of the Metropolitan Archdiocese of Santiago de Compostela.

[1][2] The cathedral episcopal see is in the Catedral Basílica de Nuestra Señora del Carmen (Cathedral Basilica of Our Lady of Carmel), dedicated to Our Lady of Carmel, in Lugo city.

It also has a World Heritage Site : the Cistercian Monastery of Santa María, in Sobrado dos Monxes, A Coruña, Galicia.

As per 2012, it pastorally served 288,000 Catholics (99.2% of 290,200 total) on 7,703 km2 in 1,139 parishes with 376 priests (315 diocesan, 61 religious), 318 lay religious (83 brothers, 235 sisters) and 7 seminarians.

[2] Its jurisdiction covers 1,138 parishes in three administrative Spanish provinces : [2]