Overview
About Holy Trinity Orthodox Cathedral
Welcome to Holy Trinity Orthodox Cathedral, a Orthodox church serving the Boston community.
What to expect here
Worship style
Congregational worship with Scripture-based teaching
Typical for Orthodox churches
Quick facts
Denomination
OrthodoxLocation
Divine Liturgy
Listing
Community listingLast updated
Oct 2026
General guidance · Orthodox churches · not specific to Holy Trinity Orthodox Cathedral
A welcoming service with worship music, Scripture reading, and a sermon. Many churches also offer programs for children, youth, and adults at various times throughout the week.
This church warmly welcomes everyone who walks through their doors. Whether you're exploring faith for the first time or returning after a long absence, you'll find a community ready to welcome you.
What Orthodox churches generally believe
Orthodox Christians believe in the Trinity, Jesus Christ as the Son of God who died and rose again, and the Bible as God's Word, received through Holy Tradition, the Nicene Creed and the seven ecumenical councils. Worship centres on the Divine Liturgy and the Eucharist, with icons, sacraments ("holy mysteries") and a strong emphasis on theosis — growing into union with God by grace.
Compared with Catholics: both have bishops in apostolic succession, seven sacraments and belief in Christ's real presence in the Eucharist; they have been separated since 1054, mainly over the authority of the Pope and the Filioque clause in the Creed. Protestants differ from both chiefly on Scripture alone and the sacraments.
General guidance, not specific to Holy Trinity Orthodox Cathedral. Individual churches vary, so ask the church about what it teaches. More about Orthodox churches →
Details come from public directories. Confirm times and contact info directly with the church.
Weekly rhythm
Divine Liturgy
2 divine liturgy across 2 days
Sun
Sunday
9:00 AM9:30 AM
Sunday Service
Sat
Saturday
5:00 PM
Saturday Service
Is this your church? Update your service times and details — free.
Update this listingChristmas Eve at churches in Boston
Get connected
Groups & Ministries
Discover what groups Holy Trinity Orthodox Cathedral offers
Visit their website to learn about small groups, Bible studies, and community programs.
Explore Groups & MinistriesGroups many churches offer — ask Holy Trinity Orthodox Cathedral which they have
Serve board
Common ways people serve at a church — not a list from this church. Ask them what they need.
Greeter / welcome team
Meet people at the door and help newcomers find a seat.
greeting
Kids ministry helper
Support Sunday kids programming — background check may be required by the church.
kids
Tech / livestream
Help with slides, sound, or the livestream.
tech
Hospitality / coffee
Set up drinks and make the lobby feel like home.
hospitality
Outreach / community serve
Join local serve projects the church already runs.
outreach
Keep exploring
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Community
Prayer & Community
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Real experiences
First-Visit Reports
What to expect, from people who've been.
Questions
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For your family
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Angelby Angel Studios
Stories that amplify light — chosen by the Angel Guild, the members who vote on what gets made.
BRAVE Books & BRAVE+
Children's books built around courage, faith, and honesty — plus a parent-screened streaming app.
Minno
Christian streaming made just for kids, ages 2–10.
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Holy Trinity Orthodox Cathedral