Ralph Johnson

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

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
 * USS Ralph Johnson (DDG-114), 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