Events from the year 1647 in Ireland.
- 13 September – Theobald Stapleton, priest and writer, put to death in Sack of Cashel (b. 1589)
- Garret Barry, soldier, served in the Eighty Years' War and the Irish Confederate Wars, military writer.
- Col Ciotach, adventurer of Clan Donald, Laird of Colonsay (b. 1570)
- Alasdair MacColla, Scottish/Irish soldier, son of Colla Ciotach, killed at the battle of Knocknanuss.
- ^ Moody, T. W.; Martin, F. X., eds. (1967). The Course of Irish History. Cork: Mercier Press. p. 372.