Robert Zimmerman or Zimmermann may refer to:
- Robert Zimmerman (commentator), CNN contributor, Democratic strategist, and Democratic National Committeeman
- Robert Allen Zimmerman, birth name of Bob Dylan (born 1941), American singer-songwriter
- Robert C. Zimmerman (1910–1996), Wisconsin Secretary of State
- Robert D. Zimmerman (born 1952), author
- Robert von Zimmermann (1824–1898), Czech-born Austrian philosopher
- Robert Zimmermann (painter) (1815–1864), landscape painter
- Robert Zimmermann (footballer) (born 1963), former German football player