County Kilkenny is a county in Ireland. It is in the province of Leinster and is part of the South-East Region. It is named after the city of Kilkenny. The county was based on the historic Gaelic kingdom of Ossory (Osraighe), which is also the basis of the Diocese of Ossory. Kilkenny County Council is the local authority for the county. According to the 2011 census the population of the county is 95,419.