| Jurisdiction: | Diocese |
| Bielsko–Żywiec | |
| Latin: | Dioecesis Bielscensis-Zyviecensis |
| Local: | Diecezja bielsko-żywiecka |
| Country: |  Poland |
| Metropolitan: | Kraków |
| Coordinates: | 49.8297°N 19.0408°W |
| Rite: | Latin Rite |
| Cathedral: | Cathedral of St. Nicholas in Bielsko-Biala (Cathedral of St. Nicholas) |
| Cocathedral: | Konkatedra pw. Narodzenia NMP in Żywiec (Co-Cathedral of the Nativity of the Blessed Virgin Mary) |
| Area Km2: | 3,000 |
| Population: | 766,873 |
| Population As Of: | 2020 |
| Catholics: | 663,286 |
| Catholics Percent: | 86.5 |
| Bishop: | Roman Pindel[1] |
| Metro Archbishop: | Marek Jędraszewski |
| Auxiliary Bishops: | Piotr Greger |
| Emeritus Bishops: | Tadeusz Rakoczy |
| Map: | Roman Catholic Diocese of Bielsko-Żywiec location map.svg |
| Website: | Website of the Diocese |
| Denomination: | Catholic Church |
The Diocese of Bielsko–Żywiec (Latin: Dioecesis Bielscensis-Zyviecensis) is a Latin diocese of the Catholic Church located in the cities of Bielsko and Żywiec in the ecclesiastical province of Kraków in Poland.
It was established as the Diocese of Bielsko–Żywiec from the Diocese of Katowice and Metropolitan Archdiocese of Kraków on 25 March 1992. In 2013 about a half of the then Catholic Church members attended church services at least once per week.
Bishops of Bielsko–Żywiec (Roman rite)