| 1 | S. Eligius, Bp. & Conf. |
| 2 | S. Bibiana, V. & M. |
| 3 | Francis Xavier, Conf. Apostle of the Indies. |
| 4 | S. Peter Chrysologus, Bp. & Conf. S. Barbara, Virgin & Martyr. |
| 5 | S. Sabbas, Abbot |
| 6 | S. Nicholas, Bp. & Conf. |
| 7 | S. Ambrose, Bishop, Confessor, and Doctor. |
| 8 | Conception of the B.V.M. with an Octave. |
| 9 | S. Leocadia, V. & M. |
| 10 | S. Melchiades, P. & M. |
| 11 | S. Damascus, P. & C. |
| 12 | S. Finian, Bishop. SS. Epimachus, &c. MM. |
| 13 | S. Lucy, Virg. & M. |
| 14 | SS. Fingar, and Companions, MM. S. Spiridion, Bp. & Conf. |
| 15 | Octave of the Conception of the Blessed Virgin Mary. |
| 16 | S. Eusebius, B. & Mart. S. Beanus, Bishop. |
| 17 | S. Olympias, Widow. |
| 18 | Expectation of the Blessed Virgin Mary. In the Diocese of Killaloe, S. Flannan, B. & C. |
| 19 | S. Samthana, Vir. & Ab. S. Nimesion, Mart. |
| 20 | S. Philagonius, Bishop and Confessor. Vigil. |
| 21 | S. Thomas, Apostle. |
| 22 | S. Ischyrion, Martyr. |
| 23 | S. Serbulus, Confessor. |
| 24 | Vigil of the Nativity. Fast. |
| 25 | Nativity of our Lord. |
| 26 | S. Stephen, first Martyr. S. Jarlath, Bishop of Tuam, Confessor. |
| 27 | S. John, Apost. & Evan. |
| 28 | Feast of the Holy Innocents, with an Oct. |
| 29 | S. Thomas, Bishop of Canterbury, Martyr. |
| 30 | The Office of the Sunday within Octave of the Nativity. |
| 31 | S. Sylvester, Pope & C. |
