Robert Mills
Robert Mills may refer to:
- Rob Mills (born 1982), Australian musician and television presenter
 - Robert Mills (architect) (1781–1855), American architect
 - Robert Mills (physicist) (1927–1999), American physicist
 - Robert Mills (politician), American politician
 - Robert P. Mills (1920–1986), American magazine editor
 - Robert L. Mills (1916–2006), American president of Georgetown College
 - Robert Mills (rower) (born 1957), Canadian Olympic rower
 - Robert Mills (priest), Dean of Dunedin