South Dublin County Council is the local authority of the county of South Dublin, Ireland. It is one of three local authorities created by the Local Government (Dublin) Act 1993 to succeed the former Dublin County Council before its abolition on 1 January 1994 and one of four councils in County Dublin. As a county council, it is governed by the Local Government Act 2001. The council is responsible for housing and community, roads and transportation, urban planning and development, amenity and culture, and environment. The council has 40 elected members. Elections are held every five years and are by single transferable vote. The head of the council has the title of Mayor. The county administration is headed by a Chief Executive, Daniel McLoughlin. The county town is Tallaght, with a civic centre at Monastery Road, Clondalkin. It serves a population of approximately 192,000.

South Dublin is a county in Ireland, within the province of Leinster and the Eastern and Midland Region. It is one of three successor counties to County Dublin, which was disestablished for administrative purposes in 1994. South Dublin County Council is the local authority for the county. The county contains both dense suburbs of Dublin and stretches of unpopulated mountains. In 2022 it had a population of 301,705, making it the fourth most populous county in the state.