St. Gregory the Great Parish, Oshawa - St. Gregory the Great Parish, Oshawa

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.

Interior vew of St. Gregory's Church facing the sanctuary

Mass Schedule

Mass Times and Confession Times

Image of the Facade of St. Gregory the Great

Parish Financial Report 2024

Financial information for 2024

Easter Message, 2026

Easter Message from Fr. Marijan

SPIRITUS DURHAM YOUNG ADULT EVENT

Calling all Young Adults Ages 19–39! Spiritus Durham invites you to a special evening

Holy Week Schedule for St. Gregory's & Holy Cross, 2026

Holy Week Schedule for St. Gregory's & Holy Cross - Confession and Celebration timings.

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.

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.

Mass Schedule

Sunday 8am and 9:30am. Tuesday 12.10pm and Friday 7pm.

Confession Schedule

Confession: Friday 6:00 pm -6:45 pm.

Dernières nouvelles

Easter Message from His Eminence Frank Cardinal Leo

Message for Easter5 April 2026His Eminence Frank Cardinal LeoMetropolitan Archbishop of Toronto My Dear Brothers and Sisters...

Medical Assistance in Dying (MAiD) virtual event

In below attachments [links], you will find information regarding an important virtual event taking place Thursday, April...

Easter message, 2026

Dear brothers and sisters in Christ, Happy Easter! As I write this just before Holy Week, I reflect...

Closeup image of Christ's face while on the Cross in painting in sanctuary

Communication from Cardinal: Holy Week

As we prepare for Holy Week, please find the following two messages (attached) from Cardinal Leo: Holy...

Événements

Easter Octave Social + Potluck

Join us on the evening of April 9 if you want to...

Apr-09-2026 - Apr-09-2026

Merciful Redeemer Parish

Women Silent Retreat - When Life Stretches Us: An Ignatian Retreat on Resilience

Women Ignatian Retreat: This Ignatian retreat on resilience invites participants to receive...

Apr-10-2026 - Apr-12-2026

Manresa Jesuit Spiritual Renewal Centre

Divine Mercy Retreat

Join us for a Day of Recollection led by Sr. Donata Farbaniec...

Apr-11-2026 - Apr-11-2026

Holy Rosary Parish: 354 St. Clair Ave W, Toronto

Divine Mercy Growth Retreat

We warmly invite you to this Retreat at Divine Retreat Centre Toronto...

Apr-11-2026 - Apr-12-2026

69 William Street Toronto, ON M9N 2G6

Day of Reflection & Prayer for the Bereaved

Day of Reflection & Prayer for the Bereaved. "Where is God in...

Apr-11-2026 - Apr-11-2026

Manresa Jesuit Spiritual Renewal Centre

Iona Prayer Service - April 12, 2026

AN IN-PERSON EVENT RECOMMENDED BY THE OFFICE FOR ECUMENICAL & INTERFAITH...

Apr-12-2026 - Apr-12-2026

Yorkminster Park Baptist Church

Decoding Propaganda: The Importance of Critical Thinking in Today’s Polarizing Media Landscape

AN ONLINE COURSE RECOMMENDED BY THE OFFICE FOR ECUMENICAL AND INTERFAITH RELATIONSParticipants...

Apr-13-2026 - Apr-26-2026

Online

Teologia del Cuerpo / Theology of the Body

This retreat, led by renowned Catholic psychologist Gustavo Mejía, offers...

Apr-18-2026 - Apr-19-2026

St Philip Neri Catholic Ch, 2100 Jane St, Toronto

Introductory Sessions for Celestial Singles

This event's first session takes place on April 18, 2026. ...

Apr-18-2026 - Jun-27-2026

St. Peter's Parish Hall, 840 Bathurst St., Toronto

Women of the Word Toronto - 2026 Forum

We warmly invite all women to our 17th Annual Women of the...

Apr-18-2026 - Apr-18-2026

8083 Jane St, Concord, ON L4K 2M7

SPECIAL PRAYER SERVICE FOR SICK & SUFFERING - APRIL 18, 2026

We invite you to come and join us at Divine Retreat Centre...

Apr-18-2026 - Apr-18-2026

69 William Street Toronto, ON M9N 2G6

Musical Film Hits and Spanish Songs

Please join us for an afternoon of musical film hits and Spanish...

Apr-18-2026 - Apr-18-2026

St. John the Evangelist 903 Giffard Street, Whitby

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Visitez-nous

194 Simcoe Street North
Oshawa, ON
L1G 4S9

Bureau/Adresse postale
194 Simcoe Street North
Oshawa, ON
L1G 4S9

t: 905.723.8141
e: stgregorythegreat@archtoronto.org

Obtenir l'itinéraire

Clergé

Rev. Marijan Sisko
Pastor

Rev. Edward McGovern
Hospital Chaplain

Deacon David MacInnis
Deacon Assistant

Parish Staff

Jacqui Martin
Secretary
stgregorythegreat@archtoronto.org
905-723-8141

Looking down a trail strewn with pine needles in a forest

Pandemic Journal

Listening to the quiet voice of Our Lord . . .

More Info

Building Family Life

The power of God's love in couple and family life.

More Info

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.

Contact the Parish

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194 Simcoe Street North, Oshawa, ON L1G 4S9

t: 905.723.8141

stgregorythegreat@archtoronto.org