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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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

  • Sunday Morning Adult Faith Gatherings - We offer presentations and discussion for adults in the Multipurpose Room during some Sunday mornings from 9:00-10:20 a.m. – right after 8 a.m. Mass and before the 10:30 a.m. Mass. No need to register! Just come and join us for coffee and sharing. Here is our current schedule: Sunday, January 21: Mike Kamenski and moral theology Sunday, February Read More »
  • School Registration and Open House 2018-2019 - REGISTRATION & OPEN HOUSE For the 2018-2019 School Year Stop in between 9:00am – 12:00pm on January 28th WHO should attend? All CURRENT / RETURNING families (BOTH Choice and non-Choice students!) All NEW or PROSPECTIVE families – interested friends, neighbors, parishioners! WHY should you attend? Returning students: Confirm your placement and intent to return for the 2018-2019 prior to Read More »
  • Liturgy – the Heart of Our Life Lesson #16 – Become a Liturgist - We live in an age of specialists.  Almost every profession has been sub-divided into narrow and specific areas of expertise.  This is the case with liturgy.  There are liturgical specialist who plan, institute, and evaluate prayer and liturgy.  The problem with this is that we are tempted to think that liturgy is the work of others: nothing could be Read More »
  • Novena to St. Sebastian - We know very little about our patron saint – Saint Sebastian – except that he was a Roman martyr, was venerated in Milan and was buried on the Appian Way, probably near the present Basilica of St. Sebastian. But he did make a tremendous impression on the Church and today his story expresses the faith and courage Read More »
  • First Communion Orientation - Sunday, January 14 at 9:00 a.m. and Wednesday, January 17 at 6:30 p.m. We are beginning the formal preparation for First Communion with orientation for children and parents, whether you are in St. Sebastian School or a parish member. If you have not registered your child for First Eucharist and are interested in this sacrament, Read More »

All news & announcements »

Upcoming events

Wed, Jan 17Weekday Mass @ St. Sebastian Church8:15 am - 9:15 am
Fri, Jan 19Weekday Mass @ St. Sebastian Church8:30 am - 9:30 am
Sun, Jan 21Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am
Sun, Jan 21Faith Formation Class @ St. Sebastian Church Hall9:00 am - 10:30 am
Sun, Jan 21Sunday Mass - 10:30am @ St. Sebastian Church10:30 am - 11:30 am
Sun, Jan 21Sunday Mass - 6pm @ St. Sebastian Church6:00 pm - 7:00 pm
Wed, Jan 24Weekday Mass @ St. Sebastian Church8:15 am - 9:15 am
Fri, Jan 26Weekday Mass @ St. Sebastian Church8:30 am - 9:30 am
Sun, Jan 28Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am