The Roman Catholic Metropolitan Archdiocese of Bangalore (Latin: Archidioecesis Bangalorensis) is an ecclesiastical territory or diocese of the Roman Catholic Church in India. It was erected as pro-vicariate from (16 March 1845 to 2 April 1850), as Vicariate from (3 April 1850 - 31 August 1886), as Diocese of Mysore - Bangalore in the Ecclesiastical Metropolitan Province of Pondicherry in Southern India from (1 September 1886 - 12 February 1940), as Diocese of Bangalore on 13 February 1940 by Pope Pius XII, and elevated to the rank of a Metropolitan Archdiocese on 19 September 1953, with the Suffragan Dioceses of Belgaum, Bellary, Chikmagalur, Gulbarga, Karwar, Mangalore, Udupi, Mysore, and Shimoga.