What Is a Feast Day?
A feast day (also called a saint's day) is a day in the liturgical calendar set aside to commemorate a particular saint. In both Catholic and Orthodox Christianity, these days are deeply woven into the rhythms of church life, personal devotion, and — in many cultures — social celebration. Finding your own feast day means discovering the saint whose name you bear and the day the Church honors that saint's memory.
How Feast Day Calendars Are Organized
Christian feast day calendars are not random. They follow structured liturgical logic:
- Historical date of death: Most saints are commemorated on the anniversary of their death — considered their "birthday into heaven" (dies natalis).
- Date of translation of relics: Some feast days mark when a saint's relics were moved to a new shrine.
- Calendar adjustments: After the Gregorian calendar reform (1582), Catholic and Orthodox dates diverged. Orthodox churches still using the Julian calendar celebrate feasts approximately 13 days later than the Gregorian calendar.
Finding Your Feast Day in the Roman Catholic Tradition
- Identify your baptismal name. Your feast day is linked to the saint whose name you received at baptism, not necessarily a nickname or middle name.
- Consult the Roman Martyrology or a Catholic saints' calendar. The official Martyrologium Romanum lists all saints with their commemorations. Simpler annual calendars are published by dioceses and Catholic publishers.
- Check for multiple entries. Popular names like Mary, John, or Michael have many feast days throughout the year. You may choose the one most prominent in your national or regional tradition.
- Note the rank of the feast. Solemnities (highest rank) such as St. Joseph (March 19) or the Birth of John the Baptist (June 24) are celebrated more solemnly than optional memorials.
Key Catholic Feast Day Resources
| Resource | Best For |
|---|---|
| Roman Martyrology | Complete official listing |
| Daily Roman Missal | Daily liturgical use |
| Diocese website calendars | Regional & national saints |
| Catholic Encyclopedia (online) | Historical research |
Finding Your Feast Day in the Orthodox Tradition
Orthodox Christians follow feast day calendars that vary by autocephalous church (Greek, Russian, Serbian, Romanian, etc.) and by calendar use (Julian or Revised Julian).
- Know your full baptismal name in your tradition. Orthodox baptismal names are often the traditional form used in that church's language and tradition.
- Determine your church's calendar. Greek Orthodox, Romanian Orthodox, and some others use the Revised Julian Calendar (aligned with Gregorian for fixed feasts). Russian, Serbian, Georgian, and Jerusalem Patriarchates use the Old Julian Calendar.
- Consult a Menaion or Orthodox synaxarion. The Menaion is a twelve-volume liturgical book listing saints and services for every day of the year. Online synaxaria from your patriarchate are also reliable.
- Ask your priest. In many Orthodox parishes, the priest can quickly identify the appropriate feast day and may bless your name day during the Divine Liturgy.
When Your Name Has No Feast Day
Some modern or non-traditional names do not appear in any saint's calendar. In such cases:
- Catholics may adopt the feast of a saint with a similar or related name, or observe All Saints' Day (November 1) as a general name day.
- Orthodox Christians often choose a saint of the same root name or celebrate All Saints' Sunday (the Sunday after Pentecost).
Making the Most of Your Feast Day
Once you've found your feast day, consider attending Mass or Divine Liturgy, reading about your patron saint's life, lighting a candle, or simply pausing for prayer and reflection. In many European cultures, the feast day is celebrated as warmly — or more so — than a birthday.