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 »

Donations for Father’s Day!

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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

  • Jeff Leow Funeral Services - Visitation and funeral services are set for June 18 for longtime parishioner and St. Coletta Day School of Milwaukee student Jeff Leow. Born July 4th, 1954. Found peace on June 7th, 2018, 27 days short of his 64th birthday. Loving son of Margaret (Nee Jarosch) and the late Gerald Leow. Dear brother to Kevin (Theresa), Paul, Cindy Read More »
  • Smoke-Free and Vape-Free Workplace Policy - Purpose:  To protect indoor air quality and to protect the health, safety and comfort of employees, students and visitors of Saint Sebastian Parish. Policy:  Smoking and vaping are not allowed at any time in any parish buildings, within 100 feet of the school building, on the school playground (beyond 100 feet) or within 15 feet of any entry door, including Read More »
  • Honor Your Father & Help St. Sebastian - Father’s Day is on June 17. Why not consider honoring your dad with a gift to St. Sebastian Parish? We’d like to pay tribute to fathers who: + Attended school here years ago + Practice their faith elsewhere but embody the spirit of St. Sebastian + Are current dads of school and faith formation students Read More »
  • Letter from Sandra McCabe - NOTE:  Come celebrate  Sandra McCabe and Laura Lionberg as they retire after many years of service to Saint Sebastian. Over the past 23 years, Laura has worked with our school children creating beautiful art and sharing her love of art. For the past 11 years, Sandra has worked with our youth helping them to grow in Read More »
  • 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 »

All news & announcements »

Upcoming events

Wed, Jun 20Weekday Mass @ St. Sebastian Church8:15 am - 9:15 am
Fri, Jun 22Weekday Mass @ St. Sebastian Church8:30 am - 9:30 am
Sun, Jun 24Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am
Sun, Jun 24Sunday Mass - 10:30am @ St. Sebastian Church10:30 am - 11:30 am
Sun, Jun 24Sunday Mass - 6pm @ St. Sebastian Church6:00 pm - 7:00 pm
Mon, Jun 25 - Fri, Jun 29Summer Academy Week One @ St. Sebastian School8:00 am - 12:30 pm
Wed, Jun 27Weekday Mass @ St. Sebastian Church8:15 am - 9:15 am
Fri, Jun 29Weekday Mass @ St. Sebastian Church8:30 am - 9:30 am
Sun, Jul 1Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am
Sun, Jul 1Sunday Mass - 10:30am @ St. Sebastian Church10:30 am - 11:30 am