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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Faith Formation »

Classes Start September 15!

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Parish »

Early Bird Sale through Oct 4!

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School »

2019-20 Registration is Open

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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. Mass – 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.  Communion Service – St. Catherine


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

Daily Reading – review the daily Mass readings.

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.


Stay Connected

Stay connected

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

Latest news

  • Blessing of Animals - Saturday, October 5 9:30 a.m. St. Sebastian Front Lawn – 54th & Washington Blvd. We will honor Saint Francis with a traditional blessing of animals. Bring your pet or a photograph of your pet to be blessed and to celebrate God’s gift of animal companionship. Contact Ed Duncklee – eduncklee@saintsebs.org.
  • Senior Fest III - Senior Fest III – Thursday, October 10. 10 a.m. – 12:30 p.m., St. Sebastian Church Hall. Free, fun event including lunch and celebrating Body, Spirit and Soul! We’ll hear from: Heidi Potts—West Suburban Y Silver Sneakers and Yoga Coordinator, who will address the importance of staying fit as an older adult Marge Nixon— An Oblate Read More »
  • Grade School Basketball - If you are a St. Sebastian parish member or day student in grades 5-8 and you would like to play basketball this year, the registration deadline is October 11. Forms are available in the school office or online. Registration forms received after deadline will be accepted on a first-come, first-served basis. All teams have a Read More »
  • John Timothy Sullivan III Services - Saint Sebastian School alum John Timothy Sullivan III passed away on Thursday, September 19th. His funeral proceedings will be held at St. Sebastian on Monday, September 30th. The visitation is from 10am – 11am and the funeral mass is at 11am. Please keep John and his family in your prayers. More details here: https://www.schmidtandbartelt.com/obituaries/detail.aspx?id=13046
  • St. Vincent de Paul Friends of the Poor® Walks - Registered walkers may participate in one of the many St. Vincent de Paul Society Friends of the Poor® Walks happening around the archdiocese. Each walk supports local St. Vincent de Paul programs. Donations can be made directly to the Saint Catherine or Saint Sebastian St. Vincent de Paul if you are not able to participate Read More »

All news & announcements »

Upcoming events

Wed, Oct 16Weekday Mass @ St. Sebastian Church8:15 am - 9:15 am
Wed, Oct 16Archive Team @ St. Sebastian Parish House6:30 pm - 8:15 pm
Fri, Oct 18Communion Service & Rosary @ St. Sebastian Church8:30 am - 10:30 am
Sun, Oct 20Sunday Mass - 8 am @ St. Sebastian Church8:00 am - 9:00 am
Sun, Oct 20Sunday Mass - 10:30am @ St. Sebastian Church10:30 am - 11:30 am
Sun, Oct 20Sunday Mass - 6pm @ St. Sebastian Church6:00 pm - 7:00 pm
Mon, Oct 21Weekday Mass @ St. Sebastian Church8:30 am - 9:30 am
Wed, Oct 23Weekday Mass @ St. Sebastian Church8:15 am - 9:15 am
Fri, Oct 25Communion Service & Rosary @ St. Sebastian Church8:30 am - 10:30 am

Live with Purpose – Discover Stewardship

An important act of Stewardship is returning your annual pledge form. Your response tells us your level of involvement in the Parish during 2019. Please consider your response prayerfully. For more information and to download a form, click here.