The Roman Catholic Diocese of Kamloops (Latin: Dioecesis Kamloopsensis) (erected 22 December 1945) is a suffragan of the Archdiocese of Vancouver.

The Diocese of Kamloops is led by Bishop Joseph Phuong Nguyen.

In 1980, Bishop Adam Exner asked the Congregation of Christian Brothers to open the high school section and in September 1981, St. Ann's Academy became a high school again.

On August 25, 2020, British Columbia justice David Crossin ordered the office of the Bishop of Kamloops and former priest Erlindo Molon, who was by then 88 years old, to pay $844,140 in damages to Rosemary Anderson, who claimed Molon raped her 75 to 100 times since 1976, when she was 26 years old.

[3] During the lawsuit, former Kamloops Bishop Adam Exner, who would eventually be appointed Archbishop of Vancouver, said during witness testimony that he knew Molon “was molesting people,” including Anderson.