The Assembly of Catholic Bishops of Ontario is the association of the Catholic bishops in the Province of Ontario in the service of Catholics of Ontario.  

By its very nature, the ACBO is involved in matters of conscience. It is, therefore, involved in providing information and instruction about the principles and moral positions of the Church on all aspects of life.

The ACBO is one of  four regional assemblies of the Canadian Conference of Catholic Bishops, which is located in Ottawa. The CCCB is the national association of all Catholic bishops of Canada.

Purpose

The purpose of the ACBO is to elaborate and coordinate the pastoral activity common to the particular Churches of the province.