Image of Front Door of St. Gregory's Church
Welcome to St. Gregory the Great
Welcome to St. Gregory's. Our church is located at the southwest corner of Adelaide and Simcoe Streets, in central Oshawa.
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Totus Tuus Summer Camp
Totus Tuus Summer Camp
Day program: grades 1-6, Monday to Friday 9am-2:30pm, July 08-12, 2024, St Gregory’s Hall Evening program: grades 7-12, Sunday to Thursday, 7pm-9pm, July...
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Interior vew of St. Gregory's Church facing the sanctuary
Mass Schedule
Mass Times and Confession Times
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Image of the Facade of St. Gregory the Great
Parish Financial Report
Financial information for 2022
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Latest News
Archdiocesan COA
Clergy Changes for 2024
Below you will find the listing of clergy changes for the Archdiocese of Toronto. We give thanks for...
Totus Tuus Summer Camp
Totus Tuus Summer Camp 2024
  Totus Tuus Summer Camp is Coming to St. Gregory! Youth of St. Gregory the Great and Holy...
Image of the Facade of St. Gregory the Great
Parish Registration & PAG Form
Request all new visitors who wish to become our Parish members and actively participate in Parish's day...
Faith Formation Study: Theology of the Body – Part 1
Theology of the Body – Part 2 – Redemption of the Body
Theology of the Body –Part 2 – Redemption of the Body   
Events
AprilPourOut_InstagramPost
"Pour Out" Adoration Night

Merciful Redeemer's spring Pour Out Adoration Night is here and open...

Apr-19-2024 - Apr-19-2024
Merciful Redeemer Parish, 2775 Erin Centre Blvd.
Exterior of St. Michael's Cathedral Basilica
Neophyte Mass

Archbishop Leo will preside at the annual Neophyte Mass to celebrate with...

Apr-21-2024 - Apr-21-2024
St. Michael's Cathedral Basilica
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Young Adult Holy Hour

Spending a Holy Hour in the presence of the Blessed Sacrament is...

Apr-21-2024 - Apr-21-2024
Holy Spirit Parish, 650 Essa Rd., Barrie, Ont. L4N 9E6
Married couple holding hands
Marriage Preparation Course (Session 3)

Monday, April 8 to Monday, May 13, 20247 p.m. to 9...

Apr-22-2024 - Apr-22-2024
St. John the Evangelist Church, 903 Giffard St., Whitby
Lamp at Night
Newman Centre April 2024 Date Night Event

Join us for an evening of delightful cuisine, meaningful, spiritual talks and...

Apr-24-2024 - Apr-24-2024
Newman Centre Catholic Mission
WEB - 042424 (Events Page).jpg
Spiritus York: Peter. Led From Denial to Martyrdom

Attention, young adults aged 19 to 35 in the York and Central...

Apr-24-2024 - Apr-24-2024
Saint Mark's, 345 Glad Park Ave., Stouffville, ON
Bible and Coffee at Lake
Women's Bible Study Series

Please come and join us for study of the Word of God...

Apr-24-2024 - Apr-24-2024
St. Joseph the Worker Parish, Thornhill
Coffee shop
Theology on Tap York: Seeking God's Will Through Every Phase of Life

Attention, young adults aged 19 to 39 in the Western region! You...

Apr-25-2024 - Apr-25-2024
All Star Wings 3130 Rutherford Rd Concord, ON
Coffee shop
Savouring the Sacred: The Spiritual Practice of Eating

In our fast-paced lives, meals often become just another task. Imagine...

Apr-25-2024 - Apr-25-2024
Online
ShareLife Logo in front of Garden
ShareLife Speaker Series: Sowing Seeds of Hope: Investing in our Future Priests

Join us in the ShareLife Speaker Series event, "Sowing Seeds of Hope...

Apr-25-2024 - Apr-25-2024
Virtual - via Zoom
The Source
The Source Holy Hour

You are invited to The Source Holy Hour with music by the...

Apr-25-2024 - Apr-25-2024
840 Bathurst Street, Toronto
Sunflowers
Love until it Hurts

LOVE UNTIL IT HURTS A TALK BY SR. BERNICE MC Have you...

Apr-26-2024 - Apr-26-2024
St Peter’s Parish, 840 Bathurst St., Toronto (Parish Hall)
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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