Gustav Glogau (6 June 1844, Laukischken (Kreis Labiau, Ostpreußen) - 22 March 1895, Laurion (Greece)) is a German philosopher of religion and an academic.
He worked for the Technical College (1881-1883) in Zurich as a private tutor and, later, ordinarius, teaching philosophy and pedagogy subjects.
He taught as a professor at the Halle University (1883-), Kiel University (1884-).
Glogau was a student of the German philologist Chajim Heymann Steinthal.