James Lyon

James Lyon may refer to:


 * James E. Lyon (1927–1993), American businessman and Texas Republican politician
 * James Lyon, 7th Earl of Strathmore and Kinghorne (c. 1702–1735)
 * James Lyon (composer) (1735–1794), early American music composer
 * Sir James Frederick Lyon (1775–1842), British Army officer and Governor of Barbados, 1829–33
 * James R. Lyon (1833–?), American merchant and soldier, Wisconsin Republican politician
 * James M. Lyon, American computer programmer, co-author of the INTERCAL programming language
 * Jimmy Lyon (born 1955), American musician