The Diocese of Lugano (Latin: Dioecesis Luganensis) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Switzerland covering the canton of Ticino. The diocese immediately subject to the Holy See. In 2004, there were 233,017 baptised persons of 306,846 inhabitants. It has as its principal patron Charles Borromeo, Archbishop of Milan, and as a secondary patron Abundius, Bishop of Como.
