Hermann Hahn (full name Christian Friedrich Hermann Hahn; 21 March 1841 – 9 February 1929) was a German architect. Hahn lived and worked in Eisenach, where he reached importance, particularly through his plans (designs) of numerous completed villas in Eisenach's south quarter. These mansion districts were established on the hillsides of Mariental valley in the construction boom between 1850 and 1914.[1]