Portlaw is a town in County Waterford, Ireland. It is also a parish in the Roman Catholic Diocese of Waterford and Lismore. It is situated approximately 14 km west-north-west of Waterford City, where the Clodiagh meets the Suir.

County Waterford is a county in Ireland. It is in the province of Munster and is part of the Southern Region. It is named after the city of Waterford. Waterford City and County Council is the local authority for the county. The population of the county at large, including the city, was 127,363 according to the 2022 census. The county is based on the historic Gaelic territory of the Déise. There is an Irish-speaking area, Gaeltacht na nDéise, in the southwest of the county.