James Simpson

James, Jim, or Jimmy Simpson may refer to:

• James Simpson (explorer) (1911–2002), polar explorer
• James Young Simpson (1811–1870), Scottish doctor and pioneer in use of chloroform as anaesthetic
• James Young Simpson (scientist) (1873–1934), Scottish professor of natural science and a diplomat; great nephew of the above
• James Simpson (politician) (1873–1938), Canadian trade unionist and mayor of Toronto, 1935
• Jim Simpson (Australian politician) (1905–1968), member of the New South Wales Legislative Assembly
• James Simpson (civil servant) (c. 1792 – 1857), early Australian civil servant and property developer
• James H. Simpson (1813–1883), surveyor of the American West for the U.S. Army.
• James Simpson (government official), New Jersey Department of Transportation commissioner and former Federal Transit Administrator for the United States DOT
• James Simpson, Jr. (1905–1960), U.S. Representative from Illinois
• James Simpson (engineer) (1799–1869), president of the Institution of Civil Engineers, 1853–1855
• James Simpson (composer), music theatre composer, performer and musical director, co-writer of Give My Regards to Broady
• Jim Simpson (director) (born 1956), American theatre and film director
• Jim Simpson (sportscaster) (born 1927), American sportscaster
• Jim Simpson (footballer), English footballer
• Jimmy Simpson (footballer) (1908–1972), Scottish footballer
• Jimmy Simpson (American football) (1897–?), blocking back in the National Football League
• William James Simpson (born 1954), commonly known as James Simpson, academic
• James Simpson (British Army officer) (1792–1868), general of the British Army
• James Simpson (advocate) (1781–1853), Scottish advocate and author
• James Simpson (minister), Moderator of the General Assembly of the Church of Scotland
• James B. Simpson (died 2002), American journalist and Episcopal priest, known for Simpson's Contemporary Quotations
• James Simpson (priest) (1865–1948), Dean of Peterborough, 1928–1942