The Roman Catholic Diocese of Kengtung (Lat: Diocesis Kengtunghensis) is a diocese of the Latin Church of the Roman Catholic Church in Burma. Erected in 1927 as the Apostolic Prefecture of Kengtung, the prefecture was created from territory in the Apostolic Vicariate of Eastern Burma. In 1950, the Prefecture was elevated to an apostolic vicariate. In 1955, the vicariate was elevated to a full diocese and became suffragan to the Archdiocese of Taunggyi. With the increases in the Catholic population, in 1975 the apostolic prefecture of Lashio was split off from the diocese of Kengtung, eventually expanding to the Diocese of Lashio.

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