- Thu1The Octave Day of the Nativity of the Lord: Solemnity of Mary, the Holy Mother of GodSolemnity
- Fri2Saints Basil the Great and Gregory Nazianzen, Bishops and Doctors of the ChurchMemorial
- Sat3January 3WeekdayThe Most Holy Name of Jesus (Optional Memorial)
- Sun4The Epiphany of the LordSolemnity
- Mon5Saint John Neumann, BishopMemorial
- Tue6Tuesday after the Epiphany of the LordWeekdaySaint André Bessette, Religious (Optional Memorial)
- Wed7Wednesday after the Epiphany of the LordWeekdaySaint Raymond of Penyafort, Priest (Optional Memorial)
- Thu8Thursday after the Epiphany of the LordWeekday
- Fri9Friday after the Epiphany of the LordWeekday
- Sat10Saturday after the Epiphany of the LordWeekday
- Sun11The Baptism of the LordSolemnity
- Mon12Monday of the first week of Ordinary TimeWeekday
- Tue13Tuesday of the first week of Ordinary TimeWeekdaySaint Hilary, Bishop and Doctor of the Church (Optional Memorial)
- Wed14Wednesday of the first week of Ordinary TimeWeekday
- Thu15Thursday of the first week of Ordinary TimeWeekday
- Fri16Friday of the first week of Ordinary TimeWeekday
- Sat17Saint Anthony, AbbotMemorial
- Sun18Second Sunday in Ordinary TimeSunday
- Mon19Monday of the second week of Ordinary TimeWeekday
- Tue20Tuesday of the second week of Ordinary TimeWeekdaySaint Fabian, Pope and Martyr (Optional Memorial) · Saint Sebastian, Martyr (Optional Memorial)
- Wed21Saint Agnes, Virgin and MartyrMemorial
- Thu22Thursday of the second week of Ordinary TimeWeekday
- Fri23Friday of the second week of Ordinary TimeWeekdaySaint Vincent, Deacon and Martyr (Optional Memorial) · Saint Marianne Cope, Virgin (Optional Memorial)
- Sat24Saint Francis de Sales, Bishop and Doctor of the ChurchMemorial
- Sun25Third Sunday in Ordinary Time, or Sunday of the Word of GodSunday
- Mon26Saints Timothy and Titus, BishopsMemorial
- Tue27Tuesday of the third week of Ordinary TimeWeekdaySaint Angela Merici, Virgin (Optional Memorial)
- Wed28Saint Thomas Aquinas, Priest and Doctor of the ChurchMemorial
- Thu29Thursday of the third week of Ordinary TimeWeekday
- Fri30Friday of the third week of Ordinary TimeWeekday
- Sat31Saint John Bosco, PriestMemorial