Oskar Hagen

Oskar Hagen (14 October 1888, Wiesbaden, Germany – 5 October 1957, in Madison, Wisconsin, United States) was a German art historian.

While lecturing at the University of Göttingen from 1918 to 1925, Hagen helped establish the Göttingen International Handel Festival. He moved to the United States to be professor of art history at the University of Wisconsin.