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

• Jay Johnson (disambiguation)
• Johnson & Johnson, an American multinational company
• J. C. Johnson (1896–1981), American pianist and songwriter
• J. J. Johnston (born 1933), American actor
• Joshua J. Johnson (born 1976), American sprinter

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