Hermann Hagen
Hermann Hagen is the name of the following people:
- Hermann von Hagen (also Harm von Hagen ; † 1570), German Lutheran theologian
- Hermann Hagen (philologist) (1844–1898), German-Swiss classical philologist
- Hermann Hagen (geographer) (1889–1976), German geographer
- Hermann Hagen (politician) (1906–1992), Austrian politician (ÖVP)
- Hermann August Hagen (1817-1893), German entomologist