Catholic church
St. Gregory the Great Parish
Oshawa, Ontario · Canada
St. Gregory the Great Parish is a Catholic church in Oshawa, Ontario, in the Archdiocese of Toronto. Mass is offered in English.
Upcoming online Masses
There are no verified upcoming online Masses for this church. Regular times above may still apply.
Mass and service times
Mass
English
12:10
Tuesday
12:10 PM (English)
Mass
English
19:00
Friday
7:00 PM (English)
Mass
English
08:00
Sunday
8:00 AM (English)
Mass
English
09:30
Sunday
9:30 AM (English)
Sources and checking
Church details last changed Sep 6, 2026. Stream links show the most recent successful destination check.
- Archdiocese of Toronto (opens a new site)From the Archdiocese of Toronto directory, checked Sep 6, 2026