Hermann Stiller (29 November 1850 – 1931) was a German architect and director of the Kunstgewerbeschule Düsseldorf.
Born Gostyń, Stiller studied at the Bauakademie and was there, among other things, a pupil of Friedrich Adler.
He received the State Prize of the Academy in 1875[1] – presumably for his Entwurf zu einer Kunst-Academie.
[2][3] Between 1878 and 1880, he worked under Wilhelm von Mörner on the planning and execution of the new building for the Reichsjustizamt in Berlin, Voßstraße 4/5.
[3] He then took part in the recording of the excavations in Pergamon,[3] where he worked on the Trajaneum [de].