Welcome to St. Irenaeus Parish website!  We are located in Oakmont, Pennsylvania, which is 15 miles northeast of Pittsburgh by the Allegheny River.   We hope that you can discover and learn what is happening here at our parish.

Please use the menu options to navigate through the various activities that encourage our parishioners to share and grow in our Catholic faith.  We welcome new members!

Mass Times

Saturday:  4:30pm      

Sunday:  8:00am, 11:00am

Tuesday - Thursday:  8:00am

Holy Days of Obligation:  10:00am, 7:00pm

Confessions:  Saturdays, 11:00am - 12:00pm


Bible Search

Advanced search

Parish Office Hours at School Building

Front entrance on 637 4th Street:

Monday - Friday:  8:30 am - 3:30 pm

Flea Market

The Flea Market will be open for business until Tuesday, October 3rd.

In the meantime, you are permitted to drop off donated items to the PLEC.  

Please contact our secretary, Barbara, for a contact # to coordinate a day and time to drop off donations.

Online Giving

Online Giving

Online Giving:  Faith Direct