James Dyson (born 1947) is a British inventor, industrial designer and founder of Dyson Ltd..

James Dyson may also refer to:

James Dyson (schoolmaster) (1875–1956), headmaster of grammar schools at Ripon and Boston, grandfather of the inventor James Dyson (physicist) (1914–1990), scientist at the National Physical Laboratory James Dyson (footballer) (born 1979), former Birmingham City F.C. football player James Dyson (minister) (1950–2020), American minister and teacher.