Likasi, formerly known as Jadotville or Jadotstad, is a city in Katanga Province, in the south-east of the Democratic Republic of Congo.
Likasi has a population of around 367,000 (2005). During the 1990s the United Nations set up feeding centres and refugee centres in and around Likasi to assist with the refugees fleeing ethnic violence in Shaba, whose arrival had increased the population of the town some 41,000.
In 1961, during the United Nations intervention in the Katanga conflict, a company of Irish UN troops deployed to Jadotville was forced to surrender to troops loyal to the Katangese Prime Minister Moise Tshombe (see Siege of Jadotville).
Likasi remains a centre for industry, especially mining, and is a transport hub for the surrounding region. There are mines and refineries supplied by nearby deposits of copper and cobalt.
Likasi is served by a station on the national railway system.