Welcome to Our Lady of the Assumption Parish

Our Lady of the Assumption Parish, a Roman Catholic Parish in the Diocese of London Ontario, acknowledges that Assumption church sits on the traditional territory of the Three Fires Confederacy. The Huron, who were given refuge by the Three Fires Confederacy, shared this land with Assumption Parish in order to establish the first Catholic parish in Canada west of Montreal.

We are a sacramental community grounded by sacred scripture. Through the grace of the Holy Spirit, we strive to be witnesses of the hope we find in relationship to Jesus Christ. This relationship is mediated and guided by the traditions of the Catholic Church as live in the world with goodness, discipline and knowledge. In other words, We affirm our potential more than we condemn our brokenness; we value reconciliation over judgment; and we value the right question over the right answer.

Vision Statement:  Be a beacon of mercy, service and discipleship.
Purpose Statement:  Encounter God.
Values:  Worship.  Justice and Service.  Forming Disciples.

New to our Church

Welcome to Our Lady of the Assumption Catholic Parish. If you wish to join our community, simply fill out a registration form online here.

New to the Catholic Church

Welcome! We realize becoming a Catholic can be a bit daunting, but there is no need to be intimidated. Whether child, student or adult, your first step is simply to call the office and request to speak to the Pastoral Minister.

Newly Enrolled University Student

All students are encouraged to join the “Windsor Campus Ministry” on Facebook .


Our History and Landscape

Our parish is one of the oldest in Canada; the former Cathedral of the Diocese and dates back to the founding of Detroit in 1701. Originally, Our Lady of Assumption was a mission church among Hurons in Detroit, founded by the Jesuits in 1728. In 1765 the sixty some (French) families living on the south shore petitioned for a parish of their own. Instead of erecting a second religious centre in the same locality, it was decided that the Mission of the Assumption among the Hurons should become the Parish of Our Lady of the Assumption with the care of the souls of both the Hurons and the French settlers. The church depicted at the top of our website is the 1804 church built between Riverside and University Avenues. Several churches have come and gone, but the one that he remained (the one we worship in today) was built in 1842. In 1845, the Diocese of London was established (up until now, this was all part of the Diocese of Quebec) and in 1859, Our Lady of Assumption was established at the Cathedral. In 1870, the Basilian Fathers took charge of the parish and of Assumption College (est. 1857). FOR THE FULL HISTORY OF THE PARISH, CLICK HERE

Presenting the Face of Christ

Following the example given in the parable of the Good Samaritan, Christian charity is first of all the simple response to immediate needs and specific situations: feeding the hungry, clothing the naked, caring for and healing the sick, visiting those in prison” (Deus Caritas Est, 31). And only through this witness of charity does the testimony of Christians become credible: “The world is in urgent need of a great prophetic sign of fraternal charity! It is not enough to “speak” of Jesus. We must also let him be “seen” somehow through the eloquent witness of our own life.” (Message of Pope John Paul II on 19th World Youth Day) Our society is a pluralistic one. We live in the midst of Christians and non-Christians who have many immediate needs. The source of these gifts, Jesus Christ, can be shared without uttering a single word. Those who practice charity in the Church’s name will never seek to impose the Church’s faith upon others. They realize that a pure and generous love is the best witness to the God in whom we believe and by whom we are driven to love. A Christian knows when it is time to speak of God and when it is better to say nothing and to let love speak. (DCE, 31c)

Our Catholic faith is the largest Christian family in the world. Our Church is a vibrant and growing family, but we miss our brothers and sisters who have not been to Mass lately. God loves you so much that He will not stop searching for you, reaching out to you, seeking you. Saint Augustine, a convert to the faith at age 33, once said, “You have made us for yourself, O Lord, and our hearts are restless until they rest in You.” Jesus wants to invite you back into His big, warm and loving Catholic family in the Church He founded 2,000 years ago. He’s calling you home, but the choice is yours… We are family. We’ve missed you. Welcome home!