James or Jim Simon may refer to:

• James Simon (art collector) (1851–1932), German entrepreneur, art collector, philanthropist and arts patron
  • James Simon Gallery in Berlin
• James Simon (1858–1925), businessman in Brenham, Texas
• James Simon (composer) (1880–1944), German composer, pianist and musicologist
• James D. Simon (1897–1982), Louisiana politician and jurist
• Jim Simon (American football) (born 1940), American offensive lineman
• Jim Simon (artist) (born 1950), American cartoonist
• James Simon (sculptor) (born c. 1954), American sculptor and mosaic artist
• Jim Avila (born James Joseph Simon; 1955–2025), American television journalist
• James Simon (journalist), journalism professor at Fairfield University, Fairfield, Connecticut

• All pages with titles containing James Simon

• James Simons (disambiguation)
• Simon James (disambiguation)