Otto Gerlach
Otto Gerlach is the name of the following people:
- Otto von Gerlach (1801–1849), German theologian and pastor
- Otto Gerlach (actor) (1858– ??), German actor and acting teacher
- Otto Gerlach (painter) (1862–1908), German painter and illustrator
- Otto Gerlach (economist) (1862–1923), German economist and political scientist
- Otto Gerlach (medic) (1866–1914), German physician
- Otto Gerlach (lawyer) (1894–1963), German lawyer and genealogist
