Sukoharjo is a regency (Indonesian: kabupaten) in Central Java province in Indonesia. Its capital is Sukoharjo, about 10 km south from Surakarta. This regency is bordered by Surakarta in the north, Karanganyar Regency in the east, Wonogiri Regency and Yogyakarta in the south, also Klaten Regency in the west.
Some parts in the border is the developmental areas of Surakarta City, such as Grogol and Kartosuro. Kartosuro is the junction of Solo-Yogyakarta track with Solo-Semarang. Sukoharjo Regency is crossed by Solo-Wonogiri railway, reoperated in 2004 after being unused for many years. This railway is one of the most "dangerous" one in Indonesia, because it located beside the main road without any breaker.