Gustav Keller
Gustav Keller is the name of the following people:
- Gustav von Keller (politician) (1805–1897), German civil servant and politician
- Gustav von Keller (lawyer) (1816–1889), Austrian lawyer
- Gustav Keller (painter) (1860–1911), German painter, draftsman and illustrator
- Gustav Keller (politician, 1867) (1867–1932), Swiss politician
- Gustav Keller (psychologist) (* 1950), German psychologist and author
