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