• December 26 – St. Stephen, first martyrs
• December 27 – St. John, apostle and evangelist
• December[Sunday between the Nativity and the Solemnity of Mary] – The Holy Family of Jesus, Mary and Joseph
• January – Baptism of the Lord
• February 2 – Presentation of the Lord
• February 14 – Saints Cyril and Methodius, patrons of Europe
• April 25 – St. Mark, evangelist
• April 29 – St. Catherine of Siena, virgin and doctor of the Church, patron of Europe
• May 14 – St. Matthias, apostle
• May 16 – St. Brendan, Patron of Diocese of Kerry
• June 9 – St. Columba [Colum Cille], abbot and missionary, secondary patron of Ireland
• July 3 – St. Thomas, apostle
• July 11 – St. Benedict, abbot, patron of Europe
• July 23 – St. Brigid of Sweden, religious, patron of Europe
• July 25 – St. James, apostle
• August 6 – The Transfiguration of the Lord
• August 10 – St. Lawrence, deacon and martyr
• August 24 – St. Bartholomew, apostle
• September 8  – Birthday of the Blessed Virgin Mary
• September 14 – The Triumph of the Cross
• September 21 – St. Matthew, apostle and evangelist
• September 29 – Saints Michael, Gabriel and Raphael, archangels
• October 28 – Saints Simon and Jude, apostles
• November 6 – All Saints of Ireland
• November 9 – Dedication of the Lateran Basilica
• November 30 – St. Andrew, apostle