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St. Denis Catholic Church

Catholic Church in Diamond Bar, CA

St. Denis Catholic Church in Diamond Bar is part of the San Gabriel Pastoral Region and Deanery 12. It was established in 1971. Mass is celebrated in English. Sunday Masses are from 6:15 AM to 5:30 PM, Saturday Masses are at 7:30 AM and 5:30 PM, and weekday Masses are at 6:30 AM, 8:00 AM, and 6:30 PM. Confession occurs on weekdays from 8:30 AM to 8:45 AM, on Friday from 5:00 PM to 6:00 PM, and on Saturday from 8:30 AM to 8:45 AM and 4:00 PM to 5:00 PM. Adoration is held Monday from 7:30 AM to 9:00 PM, Friday from 8:30 AM to 9:30 AM and 8:00 PM to 9:00 PM.

At a Glance

Established
1971
Pastoral region
San Gabriel Pastoral Region
Deanery
Deanery 12
Mass in
English

Parish Information

Mass Times at St. Denis Catholic Church

  • Sunday 6:15 AM
  • Sunday 7:30 AM
  • Sunday 9:00 AM
  • Sunday 10:30 AM
  • Sunday 12:00 PM
  • Sunday 1:30 PM
  • Sunday 5:30 PM
  • Monday 6:30 AM
  • Monday 8:00 AM
  • Monday 6:30 PM
  • Tuesday 6:30 AM
  • Tuesday 8:00 AM
  • Tuesday 6:30 PM
  • Wednesday 6:30 AM
  • Wednesday 8:00 AM
  • Wednesday 6:30 PM
  • Thursday 6:30 AM
  • Thursday 8:00 AM
  • Thursday 6:30 PM
  • Friday 6:30 AM
  • Friday 8:00 AM
  • Friday 6:30 PM
  • Saturday 7:30 AM
  • Saturday 5:30 PM Vigil

Confession Times

  • Monday 8:30 AM - 8:45 AM
  • Tuesday 8:30 AM - 8:45 AM
  • Wednesday 8:30 AM - 8:45 AM
  • Thursday 8:30 AM - 8:45 AM
  • Friday 8:30 AM - 8:45 AM
  • Friday 5:00 PM - 6:00 PM
  • Saturday 8:30 AM - 8:45 AM Or later if necessary, after the 8:00 am Mass
  • Saturday 4:00 PM - 5:00 PM

Eucharistic Adoration

  • Monday 7:30 AM - 9:00 PM In the chapel
  • Friday 8:30 AM - 9:30 AM Silent Holy Hour, in the church
  • Friday 8:00 PM - 9:00 PM Holy Hour with music, in the church

Schedules can change. Mass times last verified 2026-04-19. Please call the parish to confirm before you go, especially on holy days.

Questions about St. Denis Catholic Church

What time is Sunday Mass at St. Denis Catholic Church?
Sunday Mass at St. Denis Catholic Church is celebrated at 6:15 AM, 7:30 AM, 9:00 AM, 10:30 AM, 12:00 PM, 1:30 PM and 5:30 PM. The Saturday vigil Mass, which fulfils the Sunday obligation, is at 5:30 PM. Schedules change on holy days; the parish office can confirm.
Is there daily Mass at St. Denis Catholic Church?
Yes. Weekday Mass is celebrated Monday to Friday at 6:30 AM, 8:00 AM and 6:30 PM.
When is confession heard at St. Denis Catholic Church?
Confession is heard Monday to Saturday 8:30 AM to 8:45 AM, Friday 5:00 PM to 6:00 PM and Saturday 4:00 PM to 5:00 PM. Priests also hear confessions by appointment; the parish office is (909) 861-7106.
Does St. Denis Catholic Church have Eucharistic adoration?
Yes. The Blessed Sacrament is exposed Monday 7:30 AM to 9:00 PM and Friday 8:30 AM to 9:30 AM and 8:00 PM to 9:00 PM.
In what language is Mass celebrated at St. Denis Catholic Church?
Mass at St. Denis Catholic Church is celebrated in English.
Where is St. Denis Catholic Church?
St. Denis Catholic Church is at 2151 Diamond Bar Boulevard, Diamond Bar, California, 91765. It belongs to the San Gabriel Pastoral Region, in Deanery 12.
How do I contact St. Denis Catholic Church?
The parish office of St. Denis Catholic Church in Diamond Bar can be reached at (909) 861-7106. The parish website is www.stdenis.org/index.php.
When was St. Denis Catholic Church founded?
The register records St. Denis Catholic Church as established in 1971.

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