Welkom is a city in the Lejweleputswa District Municipality of the Free State province of South Africa. It is 160 kilometres northeast of Bloemfontein, the provincial capital. The city is the hub of the Free State gold fields, serving several gold and uranium mines. In addition to mineral ore, Welkom produces such goods as steel, lumber, and beef. The city has a technical college and a technological institute. Welkom is served by a small airport and a branch of the main railway between Johannesburg and Cape Town. The city is internationally known for the Grand Prix racing circuit located at its edge.

As the Afrikaans people say, Welkom by Welkom. An interesting fact about Welkom is that the are no traffic lights in the whole town only traffic circles, thus it is called the city of circles.