From Wikipedia, the free encyclopedia
Ralph Johnson may refer to:
- Ralph Johnson (computer scientist) (born 1955), computer science professor at the University of Illinois at Urbana-Champaign
- Ralph Johnson (architect), Chicago-based architect
- 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 (philosopher), co-creator of the subject of Informal logic at the University of Windsor
- Ralph Johnson (musician) (born 1951), percussionist for R&B/soul band Earth, Wind, and Fire
- Ralph Johnson (fencer) (born 1948), British fencer who competed at four Olympic Games
- Ralph S. Johnson (1906–2010), aviation pioneer and member of the Wyoming House of Representatives
- Ralph Johnson (bishop) (1828–1911), Anglican bishop
- Ralph Johnson (footballer) (1922–2013), English footballer
- Ralph Johnstone (1886–1910), early aviator
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