1668 in Ireland

Incumbent

• Monarch: Charles II

Events

• Roger Boyle, Earl of Orrery, resigns the office of Lord President of Munster on account of disputes with James Butler, Duke of Ormonde, Lord Lieutenant of Ireland.

Births

• Thomas FitzMaurice, 1st Earl of Kerry, politician

Deaths

• 14 April – George Hamilton, 4th Baron Hamilton of Strabane
• Full date unknown – Patrick D'Arcy, nationalist who wrote the constitution of Confederate Ireland