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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Register for March 17th Event!

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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

  • Celebrating the Paschal Mystery at St. Sebastian and St. Catherine - By Mike Kamenski, Pastoral Associate, Director of Liturgy and Music The Catholic church celebrates the paschal mystery (Christ’s suffering, death and resurrection) both within the context of an entire liturgical year, from Advent to the feast of Christ the King (think: zoom out), as well as within the context of every single mass (think: zoom Read More »
  • Reserve Your Spot at the St. Sebastian Variety Show! - Home-grown talent is the best kind! Watch your friends, neighbors and parishioners from St. Sebastian and St. Catherine in this two-hour variety show packed with song, dance and fun! Just $20 per ticket. Download a form and return to the Parish House with a check, or click here to purchase with a credit card.
  • Palm Sunday Cluster Mass - Next Sunday, March 25th, we will join St. Catherine for a cluster Mass on Palm Sunday. The Mass will be held at 10:00 am at St. Catherine Church.  Because of the cluster Mass, there will be no 10:30 am Mass at St. Sebastian.
  • Teosinte Stations of the Cross - On Friday, March 9 at  7:00 p.m., we will walk in solidarity with our sister community in Teosinte, El Salvador as we all participate in the Stations of the Cross at the same time. Mary Beth Duffey wrote the meditations with a social justice theme. Questions? Contact David Goehner –  kremergoehner@gmail.com
  • Sign Up for Life Changing Reflections - What Is BEST LENT EVER? It’s a free email program that will guide you on an incredible 40-day journey to become the-best-version-of-yourself, making this a truly life-changing Lent. Sign up here 

All news & announcements »

Upcoming events

Sat, Mar 17First Communion Parent-Child Session @ 10:30 am - 11:30 am
Sun, Mar 18Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am
Sun, Mar 18Faith Formation Class @ St. Sebastian Church Hall9:00 am - 10:30 am
Sun, Mar 18Sunday Mass - 10:30am @ St. Sebastian Church10:30 am - 11:30 am
Sun, Mar 18Sunday Mass - 6pm @ St. Sebastian Church6:00 pm - 7:00 pm
Wed, Mar 21Weekday Mass @ St. Sebastian Church8:15 am - 9:15 am
Wed, Mar 21Lenten Penance Service @ St. Sebastian Church6:30 pm - 7:30 pm
Fri, Mar 23Weekday Mass @ St. Sebastian Church8:30 am - 9:30 am
Sun, Mar 25Palm Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am