Ardmore is a seaside resort and fishing village in County Waterford, Ireland, not far from Youghal on the south coast of Ireland. The village is in a civil parish of the same name. As of the 2022 census, the village had a population of 468. Ardmore is believed to be the oldest Christian settlement in Ireland. According to tradition, Saint Declan lived in the region in the early 5th century, and Christianised the area before the coming of Saint Patrick.