Catholic Churches in Ontario, California

Catholic Life in Ontario

Ontario is home to 4 Catholic parishes, served by the Diocese of San Bernardino. Of these, 4 offer regularly scheduled Mass times, 3 have listed confession hours, and 3 provide Eucharistic Adoration.

The Catholic community here includes multiple worship traditions. In addition to Roman Rite parishes, the area is home to Roman Rite community. Masses are celebrated in Latin, Portuguese, Spanish, Ibo/Igbo, Filipino, and other languages, serving the area's multicultural Catholic population.

Whether you are a lifelong parishioner, new to the area, or visiting Ontario, this directory makes it easy to find Mass times that fit your schedule. Most parishes here offer scheduled confession times — check individual parish pages for specific hours. The area has a strong culture of Eucharistic Adoration, with 3 parishes offering scheduled hours.