| Jurisdiction: | Diocese |
| Lutsk | |
| Latin: | Dioecesis Luceoriensis |
| Local: | Єпархія Луцьку |
| Country: | Ukraine |
| Province: | Lviv |
| Metropolitan: | Lviv |
| Area Km2: | 40,300 |
| Population: | 2,211,000 |
| Population As Of: | 2013 |
| Catholics: | 25,000 |
| Catholics Percent: | 1.1 |
| Denomination: | Roman Catholic |
| Particular Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 1404 |
| Cathedral: | Saint Peter and Paul Cathedral, Lutsk |
| Bishop: | Vitaliy Skomarovskyi |
| Bishop Title: | Bishop |
| Metro Archbishop: | Mieczysław Mokrzycki |
| Suffragan: | for one --> |
| Archdeacon: | for one--> |
| Emeritus Bishops: | Markijan Trofimiak |
The Roman Catholic Diocese of Lutsk was first established in the 13th century as the diocese of Luceoria (Latin) or Łuck (Polish). After the victory of Napoleon, the diocese was joined with the diocese of Zhytomyr, forming the diocese of Lutzk-Zhitomir-Kamenetz. In 1925, the diocese of Lutsk was restored and the Diocese of Zhytomyr became separate.[1] [2]