Hartmut Kaelble (born April 12, 1940, in Göppingen, Germany) is a German historian.
Hartmut Kaelble grew up in Pfalzgrafenweiler, Germany and graduated from school in Freudenstadt.
Kaelble studied history, sociology, and constitutional law in Tübingen and at the Free University of Berlin from 1959 to 1965.
In 1966, he received his doctorate at the Free University of Berlin with a thesis on the Central Association of German Industrialists (Centralverband deutscher Industrieller [de]) from 1896 to 1914, which was supervised by Gerhard A. Ritter.
Kaelble also taught economic and social history as a professor at the Free University of Berlin from 1971 to 1991 and from 1991 to 2008, he taught social history as a professor at the Humboldt University in Berlin.