Diocese of Šiauliai (Latin: Dioecesis Siauliensis) is a Roman Catholic Diocese of Lithuania. The current bishop is Eugenijus Bartulis (since 1997). The diocese in present structure and territory was established on May 27 1997.The diocese covers an area of 7696 km2 (2971 sq mi) and is a suffragate of the Archdiocese of Kaunas.