Others
- Isaac Charles Johnson (1811–1911), English cement manufacturer
- Charles Bartlett Johnson (born 1933), American businessman; co-chairman of Franklin Resources mutual funds company
- Charles E. Johnson (businessman), managing director of Tano Capital LLC
- Charles E. Johnson (FBI Most Wanted fugitive), American criminal
- Charles Royal Johnson (born 1948), professor of mathematics
- Charles Howard Johnson (1868–1896), American illustrator and newspaper artist
- Charles Willis Johnson, dean of the University of Washington Pharmacy Department
- Charles Johnson (botanist) (1791-1880), lecturer in botany at Guy's Hospital
- Johnson Charles, West Indies cricketer
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