James, Jim, Jimmy, or Jamie Marsh may refer to:
Arts and entertainment James Randall Marsh (1896–1965), American artist Jimmy Jewel (James Arthur Thomas Jewel Marsh, 1909–1995), English comedian and actor James Marsh (director) (born 1963), British film director Jamie Marsh (born 1966), American actor
Sports James Holt Marsh (1865–1928), English rugby union footballer James Marsh (cricketer) (1870–1930), English cricketer Jim Marsh (basketball) (1946–2019), American basketball player Jim Marsh (ice hockey) (born 1951), Canadian ice hockey player
Jim Marsh (American football), American football coach
Others James Marsh (British Army officer) (died 1804), British army general James Marsh (philosopher) (1794–1842), American transcendentalist philosopher James Marsh (chemist) (1794–1846), British chemist James Marsh (priest) (1848–?), English Anglican priest James Barney Marsh (1856–1936), American engineer and bridge designer James Harley Marsh (born 1943), Canadian editor and writer