James Colquhoun
James Colquhoun may refer to:
- Sir James Colquhoun, 3rd Baronet, of Colquhoun, of the Colquhoun baronets
- Sir James Colquhoun, 4th Baronet, of Colquhoun, of the Colquhoun baronets
- Sir James Colquhoun, 1st Baronet, of the Colquhoun baronets
- Sir James Colquhoun, 2nd Baronet, of the Colquhoun baronets
- James Colquhoun
- Sir James Colquhoun, 3rd Baronet, of Luss, MP for Dunbartonshire 1799–1806
- Sir James Colquhoun, 4th Baronet, of Luss, MP for Dunbartonshire 1837–41, Lord Lieutenant of Dunbartonshire
- Sir James Colquhoun, 5th Baronet, of the Colquhoun baronets, Lord Lieutenant of Dunbartonshire
- James Colquhoun , Scottish cricketer and British Army officer