Ernst Frederic Detterer (1888, Lake Mills, Wisconsin – 1947, Chicago) was an American calligrapher, teacher, and typographer.
He studied at Moravian College and the Pennsylvania Museum and School of Industrial Art where he took classes in lettering taught by Edward Johnston.
From 1912–21 he taught wood-cut art, calligraphy and typography at Chicago Normal School.
[1] Detterer's former student, R. Hunter Middleton, later expanded Nicolas Jenson into a complete type family.
[2] At the time of his death, Detterer was employed as the custodian of the John M. Wing Collection on the History of Printing at the Newberry Library in Chicago.