The Church of St. Mary, East Islip

About this church

The Church of St. Mary is a Roman Catholic parish at 20 Harrison Avenue in East Islip, New York. Weekend Masses are celebrated Saturday at 4:30 p.m. in the auditorium and Sunday at 7:30 a.m., 9 a.m., 10:30 a.m., noon and 5 p.m. Confessions are heard Saturdays from 3:30 to 4:15 p.m. and on Wednesdays after the 7:30 a.m. Mass, and Eucharistic adoration is held Tuesdays from 1 to 8 p.m. in the church. Mass times can change, so check the website bulletin before visiting.

The music ministry includes an adult choir, an audition-based schola, a children's choir for grades 3 through 8, a youth choir for high school and college ages, and a festival choir that sings at Thanksgiving, Christmas and Easter. Prayer groups and devotions include the Divine Mercy chaplet on Tuesdays at 3 p.m., prayers for life, a Legion of Mary group, a Rosary Altar Society and a Sacred Heart devotion on Friday evenings. The parish also lists faith formation levels, confirmation preparation, Vacation Bible School, a parish school, youth ministry, outreach and a consolation ministry that supports grieving families. The rectory can be reached at 631-581-4266, Monday through Thursday.

Researched from the church’s official website and reviewed October 5, 2026. Sources: Homepage: Mass times, confessions, address · Music ministry and choirs · Prayer groups and devotions · Liturgical ministry: weekend Mass schedule

Service times

Confirm current times directly with the church before visiting.

Location