J. J. Johnson (1924–2001) was an American jazz trombonist and composer.
J. J. Johnson may also refer to: J. J. Johnson (American football) (born 1974), former American football running back J. J. Johnson (UK musician) (born 1951), British drummer JJ Johnson (EastEnders), character in the BBC soap opera, EastEnders JJ Johnson (chef) J. J. Johnson (producer), Canadian television producer and writer
See also Jay Johnson (disambiguation) Johnson & Johnson, an American multinational company J. C. Johnson (1896–1981), American pianist and songwriter J. J. Johnston (1933–2022), American actor Joshua J. Johnson (born 1976), American sprinter