Ernst Hartmann
Ernst Hartmann is the name of the following people:
- Ernst von Hartmann (1817–1883), Prussian infantry general
- Ernst Hartmann (painter) (1818–1900), German painter
- Ernst Hartmann (actor) (1844–1911), German actor
- Ernst Hartmann (SS member) (1897–1945), German SS brigade leader and major general of the police
- Ernst Hartmann (local history researcher) (1901–1988), German teacher and local history researcher
- Ernst Hartmann (physician) (1915–1992), German doctor, book author and journalist
- Ernst Hartmann von Franzenshuld (1840–1884), Austrian heraldist and numismatist
- Ernst Gaida-Hartmann (* 1957), German musician, lyricist, composer and sound engineer
- Ernst Friedrich Gustav von Hartmann (1767-1851), German physician, see Friedrich von Hartmann