Robert Collier

Robert Collier or Collyer may refer to:

• Robert Collier, 1st Baron Monkswell (1817–1886), English judge
• Robert Collier, 2nd Baron Monkswell (1845–1909), Liberal politician
• Robert Collier, 3rd Baron Monkswell (1875–1964), British aristocrat and writer
• Robert Collier (author) (1885–1950), author of self-help and metaphysical books
• Robert J. Collier (1876–1918), publisher and aviation enthusiast
• Robert Collyer (1823–1912), American Unitarian clergyman
• Robert Hanham Collyer (1814–c.1891), British phrenologist, mesmerist, and author

• Rob James-Collier (born 1976), British actor, currently in Coronation Street