James Sinclair
James Sinclair may refer to:
- James Sinclair, 8th Lord Sinclair, Scottish nobleman
- James Sinclair, 12th Earl of Caithness, Scottish noble
- James Sinclair , Canadian fur trapper
- James Sinclair, 14th Earl of Caithness, Scottish Liberal politician, scientist and inventor
- James H. Sinclair, U.S. Congressman from North Dakota
- Jimmy Sinclair , South African cricketer
- Jim Sinclair , Australian rules footballer
- James Sinclair , Canadian politician
- James Sinclair , Scottish botanist
- Jim Sinclair , Canadian Non-Status Indian and Métis politician
- Jim Sinclair , American autism rights activist
- Jimmy Sinclair, Scottish football forward
- James Sinclair , American classical music conductor
- James Sinclair , English footballer
- Jimmy Sinclair, English football left-back
- Jimmy Sinclair, New Zealand medical doctor and international rugby union player
- James Sinclair, English co-founder of EnterpriseAlumni
- James Sinclair, British entrepreneur, founder of The Partyman Group
- Jim Sinclair, character in 1967 film ''Africa Texas Style''