Robert, Bob or Bobby Davidson may refer to: Robert Davidson (photographer), British rock photographer Robert Davidson (educator) (1750–1812), United States educator, clergyman and composer Robert Davidson (poet) (1778–1855), Scottish poet and labourer Robert Davidson (inventor) (1804–1894), Scottish inventor who built the first known electric locomotive in 1837 Robert Davidson (artist) (born 1946), Alaska-born Canadian artist Robert Lee Davidson, American guitarist Robert Davidson (theologian) (1927–2012), Professor Emeritus in the University of Glasgow Robert H. M. Davidson (1832–1908), U.S. Representative from Florida Robert Davidson (composer) (born 1965), Australian composer and double bassist Robert Davidson (Canadian politician) (1875–1948), Canadian member of Parliament Robert Davidson (Australian politician) (1856–1931), New South Wales politician Robert Davidson (fencer) (born 1958), Australian Olympic fencer Robert Harold Davidson (1919–1982), United States Marine officer Robert William Davidson (1904–1982), American sculptor Robert Davidson, a pseudonym used by writer/director Riccardo Freda for the 1963 film The Ghost Bob Davidson (footballer) (born 1986), football player from Scotland Bob Davidson (ice hockey) (1912–1996), Toronto Maple Leafs Bob Davidson (umpire) (born 1952), baseball umpire Bob Davidson (pitcher) (born 1963), baseball pitcher Bob Davidson (rugby union) (1926–1992), Australian rugby union footballer of the 1940s and 1950s Bobby Davidson (1928–1993), Scottish soccer referee