Welcome to Saint Sebastian Catholic Church

Proclaim Christ and grow believers through the sacramental life of the church as an inclusive and responsive Catholic community.

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Stewardship »

Thanks to All Volunteers!

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Community »

All Are Welcome – Reduced Price for Parishioners!

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A Life of Liturgy

Gain a deeper understanding of the liturgy through this 33-week program of short videos, as part of a year-long program of the Milwaukee Westside Catholic Parishes to study and engage in the Liturgy of the Church.  Click here.

You’re invited to Mass


  • 8:00 a.m. / 10:30 a.m. / 6:00 p.m. Masses – St. Sebastian
  • 9:00 a.m. Mass – St. Catherine


  • 8:30 a.m. Prayer and Communion Service – St. Sebastian


  • 8:30 a.m. Mass – St. Catherine


  • 8:15 a.m. All School Children’s Mass (when school is in session) – St. Sebastian
  • 8:30 a.m. (when school is not in session) – St. Sebastian


  • 8:30 a.m.  Mass – St. Catherine
  • 8:30 a.m. Prayer and Communion Service – St. Sebastian


  • 8:30 a.m. Mass – St. Sebastian

Daily Reading – review the daily Mass readings.

Stay Connected

Stay connected

Click to view the Sunday Bulletin, register to receive newsletters and follow us on Facebook.

First time here?

St. Sebastian offers a welcoming presence to all! Be sure to check out all the ways to get involved – or ways we can serve you. Questions? Call (414) 453-1061 or email saintsebs@saintsebs.org.


Latest news

  • An Evolution for Faith Formation - As some parishes are struggling to attract young people, our Saint Sebastian/Saint Catherine collaboration is finding that a growing number of young families choose to call us home – we had some 60 baptisms at Saint Sebastian alone last year. We believe our strong school, active community and vibrant liturgies are leading people here to Read More »
  • MICAH Food Truck Event - Thursday, May 24, 5-8:30 p.m. Playground & Church Hall St. Sebs is a member of Milwaukee Inner City Congregations Allied for Hope (MICAH), which addresses social justice issues in the city. MICAH is holding its 30th anniversary event at our parish. All are welcome to purchase your own dinner from a food truck on the Read More »
  • November Travel to Teosinte: May 19 Deadline - The St. Sebastian El Salvador Committee, in cooperation with the SHARE organization, is organizing a delegation to travel to our sister community in Teosinte November 10-18, 2018. All members must apply for positions by May 19, 2018. Click here for details, including FAQs, application and liability form. Discernment and notification to delegates will be made Read More »
  • We Need YOU – To Join the Environmental Committee! - Our current environmental enhancer, Del Slowik, is planning on retiring and giving up his role in this endeavor. Our parish is developing a committee of interested individuals to work together to provide the appropriate prayerful environment. A committee of this size can decrease the work load commitment for a task that may appear very formidable. Del is planning to assist on Read More »
  • STAY CONNECTED! - In addition to our monthly newsletter, weekly bulletin and website, St. Sebastian Parish relies on Facebook to communicate information about upcoming events, photos of past events, parish related news and emergency notifications on the parish Facebook page. Because of changes to Facebook’s algorithm, if you’d like to stay informed, it’s important that you do the following: 1. Go to Read More »

All news & announcements »

Upcoming events

Sun, May 27Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am
Sun, May 27Sunday Mass - 10:30am @ St. Sebastian Church10:30 am - 11:30 am
Sun, May 27Sunday Mass - 6pm @ St. Sebastian Church6:00 pm - 7:00 pm
Wed, May 30Weekday Mass @ St. Sebastian Church8:15 am - 9:15 am
Fri, Jun 1Weekday Mass @ St. Sebastian Church8:30 am - 9:30 am
Sat, Jun 28th Grade Graduation @ St. Sebastian Church4:00 pm - 6:45 pm
Sun, Jun 3Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am
Sun, Jun 3Sunday Mass - 10:30am @ St. Sebastian Church10:30 am - 11:30 am