Heidegger may refer to: Heidegger (surname) Martin Heidegger (1889–1976), a German philosopher Johann Heinrich Heidegger (1633-1698), a Swiss theologian Heidegger, a philosophical body of work encompassed by Heidegger Gesamtausgabe

In fictional characters: Heidegger, a character in Final Fantasy VII Heidegger, a character in "Dr. Heidegger's Experiment", a short story by Nathaniel Hawthorne

See also Martin Heidegger (disambiguation)