The Roman Catholic Diocese of Kaišiadorys (Latin: Kaisiadorensis) is a diocese located in the city of Kaišiadorys in the Ecclesiastical Province of Vilnius in Lithuania. It was established on 4 April 1926 from the Metropolitan Archdiocese of Vilnius.
(all Roman Rite)
Between 1982 and 1991, Kaišiadorys was led by Apostolic Administrators rather than bishops.
54°51′N 24°27′E / 54.850°N 24.450°E / 54.850; 24.450