Ralph Johnson may refer to:
Sports Ralph Johnson (basketball) (1921–2005), American professional basketball player Ralph Johnson (footballer) (1922–2013), English footballer Ralph Johnson (outfielder), American baseball player Ralph Johnson (fencer) (born 1948), British fencer who competed at four Olympic Games Ralph L. Johnson, Barbadian businessman and yachtsman
Others Ralph Johnson (bishop) (1828–1911), Anglican bishop Ralph Hudson Johnson (1933–1993), British neurologist Ralph Johnson (philosopher) (born 1940), co-creator of the subject of Informal logic at the University of Windsor Ralph H. Johnson (1949–1968), United States Marine awarded the Medal of Honor during the Vietnam War , United States Navy Arleigh Burke class destroyer named for PFC Johnson Ralph Johnson (musician) (born 1951), percussionist for R&B/soul band Earth, Wind, and Fire Ralph C. Johnson (1953–2016), American politician Ralph Johnson (computer scientist) (born 1955), computer science professor at the University of Illinois at Urbana-Champaign Ralph Johnson (architect), Chicago-based architect
See also Ralph Johnstone (1880–1910), American pilot and aviation pioneer Ralph Johnstone (politician) (1914–2010), Canadian politician and farmer