List of districts in South Korea

A gu, or district, is an administrative unit in South Korea. There are two kinds of districts in South Korea. One is the autonomous district of special and metropolitan cities, which is a municipal entity similar to a city with its own mayor along with its own legislative council. The other is the non-autonomous district of municipal cities. Cities with over 500,000 people are allowed to have gu (notable exceptions to this rule are the cities of Gimhae, Hwaseong, and Namyangju).

Renamed districts

 * Nam District → Michuhol, Incheon (1 July 2018)
 * Ilsan-gu → Ilsandong-gu, Goyang (16 May 2005)
 * Buk District → Bupyeong District, Incheon (1 March 1995)
 * Jung-gu → Wonmi-gu, Bucheon (1 February 1993)
 * Nam-gu → Sosa-gu, Bucheon (1 February 1993)

Defunct districts

 * Happo-gu (합포구; 合浦區), Masan (1 July 1990 – 1 January 2001)
 * Hoewon-gu (회원구; 會原區), Masan (1 July 1990 – 1 January 2001)
 * Ulju-gu (울주구; 蔚州區), Ulsan (1 January 1995 – 15 July 1997)
 * Ojeong-gu (오정구; 梧亭區), Bucheon (1 February 1993 – 4 July 2016)
 * Sosa-gu (소사구; 素砂區), Bucheon (1 January 1988 – 4 July 2016)
 * Wonmi-gu (원미구; 遠美區), Bucheon (1 January 1988 – 4 July 2016)