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 continue to be open for business until Saturday, July 29th.

It will re-open for patrons on Tuesday, October 3rd.

Online Giving

Online Giving

Online Giving:  Faith Direct