List of Irish Saints in December

Here is the calendar of Irish Saints by feast day. Anglicizations (where applicable) are in parentheses following the Irish version. For information on the origins and meanings of these names, see the alphabetical list . For more information on the saints themselves, visit’s online Irish Saint database.  Keep in mind that many of these saints lived in the earliest years of Christianity– (i.e., St. Patrick lived from 387-461 a.d.) and there isn’t much in the way of written records surviving about them. If you don’t find any information about a saint you’re looking for; don’t be discouraged, there just may be no surviving information out there.




-1- Nuadha, Neasán, Breandán (Brendan)


-2- Mainchín (Mannix)


-3- Colmán


-4- Mainchín (Mannix), Bercan


-5- Colmán, Seanán (Senan)


-6- Beirchart, Colmán, Neasán, Meallán


-7- Buite


-8- Fionán, Breandán (Brendan)


-9- Feidhelm (Fidelma) Mughain Budoc


-10- Colmán, Scannlach


-11- Colm, Eiltín


-12- Finnén (Finian), Dúinseach


-13- Colm, Breandán (Brendan), Cormac


-14- Eirnín, Colmán, Fionntán (Fintan), Cormac


-15- Cronan, Colmán, Flann, Mughain 

-16- Beoc


-17- Díochú, Díocuill


-18- Comyn, Flannán, Colmán, Seanán (Senan), Ríonach (Riona), Éimhín (Evin), Séanait


-19- Samhthann


-20- Diarmaid (Dermot), Eoghan, Fedhlimid (Felimy), Eoghanán


-21- Flann


-22- Ultan, Éimhín (Evin), Abban


-23- Eirnín, Colmán, Rónán, Fedhlimid (Fidelma)


-24- Comyn, Seanán (Senan), Maolmhuire, Mochua


-25- Aodhán (Aidan)


-26- Comán, Iarfhlaith (Iarla/Jarlath), Laisreán


-27- Colmán, Fiach


-28- Cillén (Killian), Feichín


-29- Mainchín (Mannix), Maodhóg




-31- Éanna


Remember to pray for those departed.

Often overshadowed by the two days preceding it, Halloween (October 31) and All Saints Day (November 1), All Souls Day is a solemn feast in the Roman Catholic Church commemorating all of those who have died and now are in Purgatory, being cleansed of their venial sins and the temporal punishments for the mortal sins that they had confessed and atoning before entering fully into Heaven.

The importance of All Souls Day was made clear by Pope Benedict XV (1914-22), when he granted all priests the privilege of celebrating three Masses on All Souls Day: one, for the faithful departed; one for the priest’s intentions; and one for the intentions of the Holy Father. Only on a handful of other very important feast days are priests allowed to celebrate more than two Masses.

On All Souls Day, we not only remember the dead, but we apply our efforts, through prayer, almsgiving, and the Mass, to their release from Purgatory.

 Participation in the Mass of All Souls Day is a good way to begin the month.