St. John's Cathedral, Catholic cathedral in Parkdale, Toronto, Canada

St. John's Cathedral is a white stone church building in Parkdale featuring multiple arched windows and serving as the center of Polish Catholic life in Canada. The structure displays traditional architectural design with vaulted ceilings and sits prominently near Queen Street West.

The cathedral was established as a key church for Toronto's Polish Catholic community and has grown into an important religious landmark. It later received official designation as a heritage property under Part IV of the Ontario Heritage Act, protecting its architectural significance.

The cathedral serves as the spiritual hub for Toronto's Polish Catholic community, hosting services and celebrations that reflect their religious traditions. Visitors can observe how the space brings people together for worship and community events throughout the year.

The building is occupied by former parishioners who reconciled with the Union of Utrecht, while Polish National Catholic Church parishioners worship at a nearby United church. Visitors should check the current legal situation before planning a visit, as litigation was pending in the Ontario Superior Court of Justice.

Between 2005 and 2009 the parish functioned as the Polish-Catholic Church of Canada, a historic Old Catholic church under the jurisdiction of the Union of Utrecht but not a full member of it. Its head was Father Zbigniew Kozar. In May 2009 it reconciled with the Polish National Catholic Church and the cathedral returned to the PNCC's Canadian diocese.