St. Michael's Cathedral, Alba Iulia
| St. Michael's Cathedral | |
|---|---|
| 46°04′03″N 23°34′12″E / 46.0676°N 23.5700°E | |
| Location | Alba Iulia | 
| Country | Romania | 
| Denomination | Roman Catholic | 
| History | |
| Status | Active | 
| Founded | 13th century | 
| Founder(s) | Stephen I of Hungary | 
| Architecture | |
| Functional status | Cathedral | 
| Architectural type | Church | 
| Style | Romanesque and Gothic | 
| Administration | |
| Archdiocese | Roman Catholic Archdiocese of Alba Iulia | 
| Clergy | |
| Archbishop | Gergely Kovács | 
St. Michael's Cathedral (Romanian: Catedrala Sfântul Mihail, Hungarian: Gyulafehérvári Szent Mihály érseki székesegyház) is the cathedral of the Roman Catholic Archdiocese of Alba Iulia, Romania, and is the oldest and longest cathedral in the country.