Ciarán of Saigir was a 6th-century Irish bishop and priest who is recognized as one of the Twelve Apostles of Ireland. Born in Cléire, he is traditionally celebrated as the first saint born in Ireland, though some legends regarding his timeline relative to Saint Patrick are debated. He served as the bishop of Saighir and is often referred to as Ciarán the Elder to differentiate him from another 6th-century saint of the same name. He remains the patron saint of the diocese of Ossory.