James Simpson
James, Jim, or Jimmy Simpson may refer to:
Politicians
- James Simpson (Canadian politician), Canadian trade unionist and mayor of Toronto
- James Simpson Ballantyne, Canadian politician
- James Simpson (Ugandan politician), Minister of Economic Affairs in the first Cabinet of Uganda
- James Simpson Jr., U.S. Representative from Illinois
- Jim Simpson (Australian politician), member of the New South Wales Legislative Assembly
Sportspeople
- Jimmy Simpson (footballer, born 1873), Scottish footballer
- Jimmy Simpson (American football), blocking back in the National Football League
- Jimmy Simpson (motorcyclist), British motorcycle racer
- Jimmy Simpson (footballer, born 1908), Scottish footballer
- Jimmy Simpson (footballer, born 1923), English footballer
- Jim Simpson (sportscaster), American sportscaster
- Jim Simpson (footballer, born 1959), Scottish footballer
- Jimmy Simpson (racing driver), American racing driver
- James Simpson (wheelchair rugby league), English wheelchair rugby league footballer
Other people
- James Simpson (advocate), Scottish advocate and author
- James Simpson (businessman), Scottish-American businessman
- James Simpson (Scottish architect), Scottish architect
- James Simpson (British Army officer), general of the British Army
- James Simpson (civil servant), early Australian civil servant and property developer
- James Simpson (engineer), president of the Institution of Civil Engineers, 1853–1855
- James Young Simpson, Scottish surgeon and pioneer in use of chloroform as anaesthetic
- James Simpson (Bible Christian), English deacon and activist
- James H. Simpson, surveyor of the American West for the U.S. Army.
- James Young Simpson (minister), Methodist minister in South Australia; nephew of the surgeon
- James Simpson (priest), Dean of Peterborough
- James Young Simpson (diplomat), Scottish professor of natural science and a diplomat; great nephew of the surgeon
- James Simpson (explorer), polar explorer
- James B. Simpson, American journalist and Episcopal priest, known for Simpson's Contemporary Quotations
- James E. Simpson Jr., Kentucky politician
- James Jenkins Simpson, British entomologist and marine biologist
- James Simpson (academic), Australian academic
- James Simpson (minister), Moderator of the General Assembly of the Church of Scotland
- Jimmi Simpson, American actor
- James Simpson (government official), New Jersey Department of Transportation commissioner and former Federal Transit Administrator for the United States DOT
- Jimbo Simpson, Northern Irish paramilitary
- James Alexander Simpson, American painter
- Jim Simpson, founder of Brum Beat, Big Bear Records and Henry's Blueshouse and former manager of Black Sabbath
- James Simpson (writer), American author and former budget examiner for the White House Office of Management and Budget