James, Jim, or Jimmy Simpson may refer to:
Politicians James Simpson (Canadian politician) (1873–1938), Canadian trade unionist and mayor of Toronto (1935) James Simpson Ballantyne, Canadian politician James Simpson (Ugandan politician) (1908–1994), Minister of Economic Affairs in the first Cabinet of Uganda James Simpson Jr. (1905–1960), U.S. Representative from Illinois Jim Simpson (Australian politician) (1905–1968), member of the New South Wales Legislative Assembly
Sportspeople Jimmy Simpson (footballer, born 1873) (1873–?), Scottish footballer Jimmy Simpson (American football) (1897–1979), blocking back in the National Football League Jimmy Simpson (motorcyclist) (1898–1981), British motorcycle racer Jimmy Simpson (footballer, born 1908) (1908–1972), Scottish footballer Jimmy Simpson (footballer, born 1923) (1923–2010), English footballer Jim Simpson (sportscaster) (1927–2016), American sportscaster Jim Simpson (footballer, born 1959), Scottish footballer Jimmy Simpson (racing driver) (born 1992), American racing driver James Simpson (wheelchair rugby league), English wheelchair rugby league footballer
Other people James Simpson (advocate) (1781–1853), Scottish advocate and author James Simpson (businessman), Scottish-American businessman (1874–1939) James Simpson (Scottish architect) (1830–1894), Scottish architect James Simpson (British Army officer) (1792–1868), general of the British Army James Simpson (civil servant) (c. 1792–1857), early Australian civil servant and property developer James Simpson (engineer) (1799–1869), president of the Institution of Civil Engineers, 1853–1855 James Young Simpson (1811–1870), Scottish surgeon and pioneer in use of chloroform as anaesthetic James Simpson (Bible Christian) (1812–1859), English deacon and activist James H. Simpson (1813–1883), surveyor of the American West for the U.S. Army. James Young Simpson (minister) (c. 1843–1898), Methodist minister in South Australia; nephew of the surgeon James Simpson (priest) (1865–1948), Dean of Peterborough (1928–1942) James Young Simpson (diplomat) (1873–1934), Scottish professor of natural science and a diplomat; great nephew of the surgeon James Simpson (explorer) (1911–2002), polar explorer James B. Simpson (1927–2002), American journalist and Episcopal priest, known for Simpson's Contemporary Quotations James E. Simpson Jr. (1928–1999), Kentucky politician James Jenkins Simpson (1881–1936), British entomologist and marine biologist James Simpson (academic) (born 1954), Australian academic James Simpson (minister) (fl. 1970s–1990s), Moderator of the General Assembly of the Church of Scotland Jimmi Simpson (born 1975), American actor James Simpson (government official) (fl. 2010s), New Jersey Department of Transportation commissioner and former Federal Transit Administrator for the United States DOT Jimbo Simpson (?–2018), Northern Irish paramilitary James Alexander Simpson (1805–1880), American painter Jim Simpson, founder of Brum Beat, Big Bear Records and Henry's Blueshouse and former manager of Black Sabbath James Simpson (writer) (born 1951 or 1952), American author and former budget examiner for the White House Office of Management and Budget
See also James Simson (1740–1770), medical academic James Simson (surgeon) (1795–1876), Edinburgh surgeon Jamie Simpson (born 1986), Australian rugby league coach with the Central Queensland Capras