This article is about the city in Saxony. For other meanings, see Chemnitz (disambiguation).

Chemnitz [Zum Anhören bitte klicken!Abspielenˈkʰɛmnɪt͡s] (from 1953 to 1990 Karl-Marx-Stadt) is an independent city in the southwest of the Free State of Saxony and its third largest major city after Leipzig and Dresden. The river that gives it its name runs through the city, which lies on the northern edge of the Erzgebirge mountains in the Erzgebirge basin. Chemnitz is the headquarters of the Saxony State Administration and part of the metropolitan region of Central Germany. On 28 October 2020, the city was selected as the European Capital of Culture 2025.

The oldest documented reference to Chemnitz as Kameniz (from Sorbian kamjenica, "stone brook") dates back to 1143. With the industrial revolution, a strong population growth began in the 19th century, and after the founding of the German Empire in 1871, Chemnitz developed into an important industrial city. During the period of high industrialization in the German Empire, Chemnitz became a large city in the course of 1882. The population reached its historic peak at the beginning of the 1930s with over 361,000 people. During the Second World War, 80% of the city centre was destroyed in the air raids on Chemnitz in February and March 1945. By decision of the Central Committee of the SED and the government of the GDR, the city was renamed Karl-Marx-Stadt on 10 May 1953.

With over 200 years of industrial history, the city is now a technology location with a focus on the automotive and supplier industry, information technology and mechanical and plant engineering. Chemnitz is home to a technical university.

The city in the foothills of the Ore Mountains is home to numerous leisure facilities and museums, including the Chemnitz Art Collections and the Chemnitz State Museum of Archaeology.

Well-known sons and daughters of the city are the painter Karl Schmidt-Rottluff, the writer Stefan Heym and the designer Marianne Brandt.