Saints of December
- December 1 – St. Eligius
- December 2 – St. Bibiana
- December 3 – St. Francis Xavier
- December 4 – St. Barbara, Virgin, Martyr
- December 5 – St. Sabas, Abbot
- December 6 – Saint Nicholas of Bari
- December 7 – Saint Ambrose, Bishop
- December 8 ~ Immaculate Conception
- December 9th – St. Peter Fourier
- December 10—ST. EULALIA, Virgin, Martyr
- December 10 – St. John Roberts
- December 11 – St. Damascus, Pope
- December 12 – Our Lady of Guadalupe
- December 13 – Saint Lucy of Syracuse, Virgin Martyr
- December 14 – St. Nicasius, Archbishop, and his Companions, Martyrs
- December 15 – St. Mesmin
- December 16 – St. Eusebius, Bishop
- December 17 – St. Olympias, Widow
- December 18 – St. Gatian, Bishop
- December 19 – St. Nemesion, Martyr
- December 20 – St. Philogonius, Bishop
- December 21 – St. Thomas, Apostle
- December 22 – St. Ischyrion, Martyr
- December 23 – St. Servulus
- December 24 – St. Delphinus, Bishop – Sts. Thrasilla and Emiliana, Virgins.
- December 25 – The Nativity of Christ, or Christmas Day
- December 26 – St. Stephen, First Martyr
- December 27 – St. John, Evangelist
- December 28 – The Holy Innocents
- December 29 – St. Thomas of Canterbury
- December 30 – St. Sabinus, Bishop, and his Companions, Martyrs
A Character Calendar ~ December
- December 1 ~ St. Eligius
- December 2 ~ St. Bibiana, Virgin and Martyr
- December 3~ St. Francis Xavier, Confessor
- December 4 ~ St. Peter Chysologus, Doctor of the Church
- December 5 ~ St. Sabbas, Abbot
- December 6 ~ St. Nicholas, Bishop
- December 7 ~ St. Ambrose, Bishop
- December 8 ~ The Immaculate Conception of the Blessed Virgin Mary