Robert Johnson (1911–1938) was an American blues singer and guitarist.

Robert Johnson may also refer to:

• Robert Johnson (artist) (1770–1796), English artist, pupil of Thomas Bewick
• Robert Barbour Johnson (1907–1987), artist and writer of weird fiction
• Robert Flynn Johnson, curator emeritus at the Fine Arts Museums of San Francisco
• Bob Johnson (actor) (1920–1993), voice actor noted for Mission: Impossible mission messages
• Bob J, Robert Kwame Johnson (died 2010), Ghanaian cinematographer
• Robert Johnson (born 1948), British comic entertainer known under the stage name Bob Carolgees

• Bob Johnson (butcher) (Robert Alan Johnson, 1940–2001), English businessman
• Robert E. Johnson (editor) (1922–1996), publisher and editor of JET magazine
• Robert L. Johnson (born 1946), American media entrepreneur, founder of Black Entertainment Television (BET)
• Robert M. Johnson (publisher) (born 1945), publisher of Newsday
• Robert Wood Johnson I (1845–1910), founded Johnson & Johnson
• Robert Wood Johnson II (1893–1968), 3rd president of Johnson & Johnson
• Robert Wood Johnson III (1920–1970), 3rd generation president of Johnson & Johnson
• Woody Johnson (Robert Wood Johnson IV, born 1947), American businessman

• Robert Johnson (Tennessee) (1834–1869), Civil War colonel; the son and private secretary of US president Andrew Johnson
• Robert S. Johnson (1920–1998), American World War II flying ace
• Robert Lee Johnson (spy) (1922–1972), American spy for the Soviet Union
• Robert Gibbon Johnson (1771–1850), New Jersey colonel, farmer, historian and politician

• Robert Johnson (martyr) (died 1582), Catholic priest
• Robert Johnson (archdeacon of Leicester) (1540–1625), Puritan rector
• Robert Johnson (bishop) (died 1767), Anglican bishop of Cloyne, 1759–1767
• Robert Carroll Johnson Jr. (1938–2014), bishop of North Carolina in The Episcopal Church
• Robert Hodges Johnson (fl 1989), bishop of Western North Carolina in The Episcopal Church
• Robert J. Johnson (priest) (died 1916), American Roman Catholic priest

• Robert Johnson (economist) (born 1950s), American economist
• Robert Johnson (historian), professor at the University of Toronto
• Robert A. Johnson (psychotherapist) (1921–2018), American author and Jungian analyst
• Robert David Johnson (born 1967), known as KC Johnson, professor of history
• Robert E. Johnson (scientist), American mathematician, engineer and physicist
• Robert Erwin Johnson (1923–2008), University of Alabama professor, historian of the U.S. Navy and Coast Guard
• Robert Livingston Johnson (1894–1966), Temple University president and former vice president of Time Inc.
• Robert Royce Johnson (1928–2016), engineer, computer pioneer, and professor; inventor of the Johnson counter
• Robert Walter Johnson (1899–1971), American physician

• Robert Johnson (handballer) (born 1951), Canadian handball player who competed at the 1976 Summer Olympics
• Robert Johnson (tight end) (born 1980), American football player (NFL tight end)
• Robert Johnson (safety) (born 1987), American football player (NFL safety for the Tennessee Titans)
• Robert Johnson (wide receiver) (born 1982), American football player
• Robert Johnson (runner), 1981 USA marathon champion
• Robert Johnson (basketball) (born 1995), American basketball player

• Sir Robert Johnson (civil servant) (1874–1938), British civil servant, Deputy Master of the Royal Mint, 1922–1938
• Robert Johnson (prison officer) (born 1953), American air force veteran and former prison guard
• Robert Crawford Johnson (1882–1937), English inventor of the Cube teapot
• Robert R. Johnson (1928–2010), co-owner of the racehorse Timoleon
• Robert Grady Johnson, co-conspirator in the Geronimo bank murders

• "Robert Johnson", a song by Alexis Korner from The Party Album