Ludwig Karl Hilberseimer (September 14, 1885 – May 6, 1967) was a German architect and urban planner best known for his ties to the Bauhaus and to Mies van der Rohe, as well as for his work in urban planning at Armour Institute of Technology (now Illinois Institute of Technology), in Chicago, Illinois.
Beginning in 1919, he was member of the Arbeitsrat für Kunst and November Group, worked as independent architect and town planner, and published numerous theoretical writings on art, architecture, and city planning.
Street hierarchy was first elaborated by Ludwig Hilberseimer in his book Großstadt Architektur [Architecture of the Metropolis], 1927.
Hilberseimer emphasized safety for school-age children to walk to school while increasing the speed of the vehicular circulation system.
The Ludwig Karl Hilberseimer Papers collection, including drawings, photographs, and other printed material, is held by the Ryerson & Burnham Libraries in the Art Institute of Chicago.