Tabernacle at St. Gregory with word "Salus" visible
First Communion Program
Find out details of our parish's program for preparation for First Holy Communion and Reconciliation.
Image of Chrism Vial and Oil stock for use in anointing
Confirmation Program
Find out more about our parish's program for the preparation for the Sacrament of Confirmation.
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Letters of Reference
Letters of Reference for Catholic Teacher Applicants
John the Baptist closeup of small bronze
Sacrament of Baptism
Find out more about preparing for the Sacrament of Baptism for your child.
Tabernacle at St. Gregory with word "Salus" visible
Mass Schedule
Sunday 8am and 9:30am. Tuesday 12.10pm and  Friday 7pm.
Image of Sacred Heart in stained glass
Confession Schedule
Confession: Friday 6:00 pm -6:45 pm.
Latest News
Coat of Arms of Frank Cardinal Leo
Message for Lent 2025 from His Eminence Frank Cardinal Leo
Lenten Message 2025His Eminence Frank Cardinal LeoMetropolitan Archbishop of Toronto   My Dear Brothers and Sisters, May Jesus...
Coat of Arms of Frank Cardinal Leo
Requesting Prayers of Healing for His Holiness Pope Francis
Requesting Prayers of Healing for His Holiness Pope Francis27 February 2025 Dear Brothers and Sisters, As you may...
Hope
The Jubilee Year Mass
The Jubilee Mass on January 29, 2025, at St. Gregory the Great The last time St. Gregory the...
Image of Front Doors of St. Gregory the Great from outside
Festival of Faith at St George Anglican church in Oshawa
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Events
Proclaiming Christ
Listening to the Voice of God and Following Through
Visit Us
194 Simcoe Street North
Oshawa, ON
L1G 4S9

 Office/Mailing Address
194 Simcoe Street North
Oshawa, ON
L1G 4S9

t:  905.723.8141
e:  stgregorythegreat@archtoronto.org

Get Directions
Clergy
Rev. Marijan Sisko
Pastor

Rev. Edward McGovern
Hospital Chaplain

Deacon David MacInnis
Deacon Assistant

Parish Staff
Jacqui Martin
Secretary
secretary@stgregorythegreat.ca
905-723-8141



Living Our Baptism in Our Parish
Help to build up the life we have received in Christ by sharing the gifts you have received: In Christ's Spirit, Through your human talents, and with your material resources.
Prayer
Join in prayer in new ways with others.
Human Gifts and Service
Use your gifts to build up the life of the Gospel.
Material Support
Support the parish and charities who further the mission of Christ.

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