Robert Stanley may refer to:
Robert Stanley (MP) (died 1632), member of parliament (MP) for Lancashire
Robert Christopher Stafford Stanley (1899–1983), governor of the Solomon Islands (1953–1955)
Robert H. Stanley (1881–1942), American sailor and Medal of Honor recipient
Robert Stanley (aviator) (1912–1977), American test pilot and engineer
Robert Crooks Stanley (1876-1951), American metallurgist and industrialist
Robert C. Stanley (1918–1996), American artist known for his paperback book covers
Bob Stanley (baseball) (born 1954), American baseball pitcher
Bob Stanley (musician) (born 1964), British musician
Mike Stanley (Robert Michael Stanley, born 1963), American baseball catcher
Robert Stanley (Australian politician) (1847–1918), Australian politician
Robert Stanley (mayor) (1828–1911), British mayor and businessman