The Roman Catholic Diocese of Mysore (Latin: Mysurien(sis)) is a suffragan Latin diocese, in the Ecclesiastical province of Bangalore in southern India, yet depends on the missionary Roman Congregation for the Evangelization of Peoples.
Its cathedral episcopal see is St. Philomena’s Cathedral in the city of Mysore in Karnataka.
As per 2014, it pastorally served 105,113 Catholics (1.0% of 10,056,000 total) on 21,051 km² in 77 parishes with 157 priests (114 diocesan, 43 religious), 1,224 lay religious (309 brothers, 915 sisters) and 19 seminarians.
Established on 3 April 1850 as the Apostolic Vicariate of Mysore, on territoty split off from the Diocese of MaduraPromoted pn September 1, 1886 as Diocese of MysoreLost territories repeatedly : on 1923.06.12 to establish Diocese of Calicut, on 1930.05.26 to establish Diocese of Salem, on 1940.02.13 to establish Diocese of Bangalore, on 1955.07.03 to establish Diocese of Ootacamund and on 1963.11.16 to establish Diocese of Chikmagalur.(all Latin Rite; until 1963 European members of a Latin missionary congregation)
Apostolic Vicars of MysoreÉtienne-Louis Charbonnaux, Paris Foreign Missions Society (M.E.P.) (born France) (April 3, 1850 – death June 23, 1873), Titular Bishop of Iassus (1844.07.08 – 1873.06.23), previously as [[Coadjutor Apostolic Vicar of Verapoly (India) (1844.07.08 – 1850.04.03)Joseph-Auguste Chevalier, M.E.P. (born France) (November 11, 1873 – death March 25, 1880), Titular Bishop of Germanicopolis (1873.11.11 – 1880.03.25)Jean-Yves-Marie Coadou, M.E.P. (born France) (August 20, 1880 – November 25, 1886 see below), Titular Bishop of Chrysopolis in Arabia (1880.08.20 – 1886.09.01)Suffragan Bishops of MysoreJean-Yves-Marie Coadou, M.E.P. (see above November 25, 1886 – death September 14, 1890)Eugène-Louis Kleiner, M.E.P. (born France) (September 14, 1890 – retired June 2, 1910), succeeding as former Titular Bishop of Lyrba (1890.06.20 – 1890.09.14) as Coadjutor Bishop of Mysore (1890.06.20 – 1890.09.14); on emeritate Titular Bishop of Tlous (1910.06.17 – death 1915.08.19)Augustin-François Baslé, M.E.P. (born France) (June 2, 1910 – death September 13, 1915), succeeding as former Titular Bishop of Calynda (1905.12.15 – 1910.06.02) as Coadjutor Bishop of Mysore (1905.12.15 – 1910.06.02)Hippolyte Teissier, M.E.P. (born France) (September 4, 1916 – death February 26, 1922)Maurice-Bernard-Benoit-Joseph Despatures, M.E.P. (born France) (June 21, 1922 – February 13, 1940); next Bishop of Bangalore (India) (1940.02.13 – 1942.09.06), emeritate as Titular Bishop of Benda (1942.09.06 – death 1963.08.26)René-Jean-Baptiste-Germain Feuga, M.E.P. (born France) (April 3, 1941 – retired November 20, 1962), stayed on as Apostolic Administrator November 20, 1962 – November 16, 1963) while on emeritates as Titular Bishop of Fornos major (1962.11.20 – death 1964.01.27)Sebastião Francisco Mathias Fernandes (first native incumbent) (November 16, 1963 – death May 9, 1985)Francis Michaelappa (December 22, 1986 – death March 17, 1993)Joseph Roy (December 19, 1994 – retired February 12, 2003), died 2014Thomas Vazhapilly (February 12, 2003 – retired 25 January 2017)Bishop-elect Kannikadass William Antony (25 January 2017 – ...)