St Mary's Church, Belfast
| St. Mary's Church | |
|---|---|
| Saint Mary's Church, Belfast (Chapel Lane) | |
St Mary's Church, Belfast  | |
| 54°35′59″N 5°55′59″W / 54.599715°N 5.933020°W | |
| Location | Belfast, County Antrim | 
| Country | Northern Ireland | 
| Denomination | Catholic | 
| Website | stmarysbelfast | 
| Architecture | |
| Architect(s) | John O'Neill | 
| Architectural type | Romanesque architecture | 
| Years built | 1782-1784 | 
| Administration | |
| Province | Armagh | 
| Diocese | Down and Connor | 
| Clergy | |
| Bishop(s) | Alan McGuckian | 
| Priest in charge | Very Rev. Timothy Bartlett PP | 
St. Mary's Church (Irish: Naoimh Eaglais Mhuire) is a Grade B-1 listed Catholic church located in Chapel Lane/Smithfield area of Belfast, Northern Ireland. A church was opened on this site in May 1784 and thus it is the mother church for the city of Belfast. At the time, it was the only Catholic church in the then town of Belfast after the relaxation of some of the Penal Laws. The church grounds contain an undistinguished grotto dedicated to Our Lady of Lourdes.