| St. John Cantius Parish | |
| Location: | 10 Hawley Street Northampton, Massachusetts |
| Country: | United States |
| Coordinates: | 42.3205°N -72.6269°W |
| Denomination: | Roman Catholic |
| Architect: | John W. Donohue |
| Founder: | Polish immigrants |
| Dedication: | St. John Cantius |
| Diocese: | Springfield in Massachusetts |
| Province: | Boston |
| Division: | Region 5 |
| Bishop: | Most Rev. Timothy A. McDonnell |
| Pastor: | Rev. Merle L Lavoie |
St. John Cantius Parish is a former Roman Catholic Parish designated for Polish immigrants in Northampton, Massachusetts, United States.
It was founded 1904. It is one of the Polish-American Roman Catholic parishes in New England in the Diocese of Springfield in Massachusetts.
The parish merged with the Sacred Heart Parish in April 2010.[1]