Hermann Keller
Hermann Keller is the name of the following people:
- Hermann Keller (hydrologist) (1851–1924), German water manager and hydrologist
- Hermann Keller (musicologist) (1885–1967), German church musician and musicologist
- Hermann Keller (politician) (1945–2007), Swiss politician (SP)
- Hermann Keller (composer) (1945–2018), German pianist and composer
- Hermann Keller (cyclist) (* 1993), German cyclist