Klungkung is the smallest regency (kabupaten) of Bali, Indonesia. It has an area of 315 km and population of 169,906 (2004). Its regency seat is Semarapura.
The regency is divided into 4 subdistricts (kecamatan): Banjarangkan, Dawan, Klungkung, and Nusa Penida.
The regency is famous for its classic Balinese paintings which mostly depict the story of the epics like Mahabharata or Ramayana. These classical style paintings come from the frescoes of the Balinese Palaces, and can also be found at Klungkung Palace in the downtown area. Semarajaya Museum is also located in the area.
Some 60% of the land area of Klungkung is made of the three offshore islands of Nusa Penida, Nusa Ceningan and Nusa Lembongan