1604 in Ireland

Incumbent

• Monarch: James I

Events

• July 11 – Derry chartered as a city.

Births

• March 10 – David Barry, 1st Earl of Barrymore
• Ulick Burke, 1st Marquess of Clanricarde, nobleman and figure in English Civil War
• Nicholas French, Bishop of Ferns, political activist and pamphleteer

Deaths

• January 28 – Brian Oge O'Rourke, King of West Breifne.
• Katherine FitzGerald, Countess of Desmond