J. J. Smith

J. J. Smith may refer to:

• J. J. Smith (Gaelic footballer), Carlow Gaelic footballer
• J. J. Smith (author) (born 1970), American author, nutritionist and weight management expert
• J. J. Smith or J. J. Sm., Johannes Jacobus Smith (1867–1947), Dutch botanist
• James J. Smith, FBI Supervisory Special agent
• James John Smith (electrical engineer), American applied mathematician
• J. J. Smith (linguist) (1883–1949), South African linguistics

• J. Smith (disambiguation)
• JJ (disambiguation)
• List of people with surname Smith