Feast Day
A day on the church calendar honoring a saint or an event in the life of Christ or Mary — marked with special readings, sometimes a Mass or Liturgy, and often, despite the name, no feast.
What they actually mean
“"A saint's day, or a holy day, on the church calendar. Food not guaranteed."”
Heard in the wild
“Today is the feast of St. Patrick.”
“Our parish's patronal feast is a big deal — procession, festival, the works.”
The Lighter Side
A "feast" that frequently involves no feast. Some do — St. Joseph's Day means pastries. Plan accordingly.
The longer version
What it means
The liturgical calendar assigns a saint or a sacred event to nearly every day of the year, and those days are feasts. The feast of the Annunciation (March 25), of St. Peter and St. Paul (June 29), of the Assumption (August 15), of All Saints (November 1); the feasts of St. Francis, St. Patrick, St. Nicholas; the feast of the Transfiguration. On a feast day the readings and prayers honor the saint or event, a Mass or Liturgy may be celebrated specially, and — for the major ones — the faithful are expected to attend. A parish's "patronal feast," the day of the saint it's named for, is often its biggest celebration of the year.
The name comes from a time when feast days were actual feasts — days off, with food — as opposed to fast days. Many now involve neither.
Why people say it
The calendar of feasts is the church's way of remembering: keeping the saints and the events of salvation in view through the year, so that a Catholic or Orthodox Christian moves through time in the company of the whole church past. Feasts also give cultures their holidays — St. Patrick's Day, St. Nicholas Day, Carnival before Lent — and families their name days. The rhythm of feast and fast is ancient, and Christians who keep it say it shapes the year the way the seasons do.
How to respond
If a Catholic or Orthodox friend mentions a feast day, they're telling you what today is on their calendar; "which saint?" or "what's the feast for?" is a good question. If it's a holy day of obligation, they'll be going to Mass. If they invite you to a patronal festival, go — parish festivals are social, delicious, and open to all. If it's your name day in a culture that keeps them, expect a small celebration and a "happy name day." If you're wondering whether there's food, ask; sometimes there is.
If you hear it in different churches
Catholics keep the full calendar with solemnities, feasts, and memorials, and holy days of obligation. Orthodox keep their own calendar (twelve Great Feasts plus the saints), often on the older Julian dating, with the Slavic slava (family patron feast) as a major custom. Anglicans and Lutherans keep major feasts and some saints' days. Methodists and Presbyterians keep the major feasts of Christ. Baptists, evangelicals, and Pentecostals keep Christmas and Easter and generally no others.
Where does “Feast Day” come from?
Israel's calendar had feasts (Leviticus 23: Passover, Pentecost, Tabernacles), and Christians kept the anniversaries of martyrs' deaths from the 100s — the Martyrdom of Polycarp (around 155) is the earliest record. By the 300s a calendar of saints' days had formed, joined by feasts of Christ's life; by the Middle Ages nearly every day had a saint, and feasts (holy days, "holidays") were days of rest. The Reformation reduced them; Vatican II's 1969 calendar reform pruned and reorganized the Catholic calendar into solemnities, feasts, and memorials. Parish festivals on patronal feasts are a Southern European and Latin American tradition carried worldwide.
Good to know
The church calendar ranks its days: *solemnities* (the biggest — Christmas, Easter, Pentecost, the Assumption), *feasts* (the apostles, major events), and *memorials* (most saints). A "holy day of obligation" is a solemnity Catholics must attend Mass on. Many cultures keep name days (your patron saint's feast) like a second birthday. Some feasts do involve food — St. Joseph (zeppole), St. Lucy (saffron buns), St. Nicholas (chocolate coins) — and Catholic parish festivals often fall on the patron's feast.
You might also hear
Saint
Catholic & OrthodoxIn Catholic and Orthodox use, a person officially recognized as holy and in heaven, who can be asked to pray for you. In the New Testament — and Protestant use — every Christian.
“"Either an official holy hero (Catholic) or any believer at all (Protestant). Same word, two sizes."”
Parish
Catholic & OrthodoxA local Catholic, Anglican, or Orthodox church community and, traditionally, the geographic area it serves — everyone living within its boundaries belongs to it.
“"A church with a zip code. You belong to the one nearest you (in theory)."”
Ordinary Time
Holidays & CalendarThe long stretches of the church year that aren't a special season — after Epiphany until Lent, and after Pentecost until Advent — when the Sundays are simply numbered and the liturgical color is green.
“"The church year's 'regular' weeks — no big feast, just numbered Sundays and green."”
Common questions
What's a feast day?+
A day on the church calendar honoring a saint or a sacred event, marked with special readings and prayers, and for the major ones, a required Mass or Liturgy.
Is there actually a feast?+
Sometimes. Historically feast days were days of celebration and food; now most are simply liturgical observances, though some (St. Joseph, St. Nicholas, patronal festivals) keep the food.
What's a holy day of obligation?+
A major feast on which Catholics are required to attend Mass — Christmas, the Assumption, All Saints, and a few others, varying by country.
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Written by Rev. Christopher D.F. Warrington, Ordained Minister, M.Div. · Updated September 2026
This entry was compiled with AI assistance and has not yet been reviewed by an ordained pastor.