James Duncan
James, Jim, or Jimmy Duncan may refer to:
Politicians
- James Duncan , American politician from Pennsylvania
- James Duncan , British lawyer and Liberal politician
- James H. Duncan, American politician from Massachusetts
- James Hastings Duncan, British Liberal Member of Parliament for Otley, 1900–1918
- Jim Duncan , former Speaker of the Alaska House of Representatives, congressional candidate
- Jimmy Duncan , American politician from Tennessee
- Sir James Duncan, 1st Baronet, British politician
Sportspeople
- James Duncan , American athlete
- James Duncan , Scottish footballer
- James Duncan , Scottish footballer
- James Duncan , basketball coach
- Jamie Duncan, American football linebacker
- Jim Duncan , American catcher and first baseman in Major League Baseball
- Jim Duncan , American football player
- Jim Duncan , American football player and coach
- Jim Duncan , English professional footballer
- Jimmy Duncan , Scottish footballer
- Jimmy Duncan , New Zealand rugby union footballer, coach and referee
Others
- James Duncan , Scottish sugar refiner and philanthropist
- James Duncan , Episcopal bishop in America
- James Duncan , New Zealand missionary and Presbyterian minister
- James Duncan , Canadian-born musician, improviser and house music producer
- James Duncan , Scottish surgeon and main manufacturer of chloroform in 19th century Britain
- James Duncan , Scottish-American union leader
- James Duncan , American artillery officer of the Mexican–American War
- James Duncan , Scottish naturalist
- Jimmy Duncan , American songwriter
- James Elmslie Duncan, English Chartist poet, editor, writer, and activist
- James K. L. Duncan, American soldier and Medal of Honor recipient
- James Matthews Duncan, Scottish physician
- James Duncan, Scottish tailor and landowner