James Colquhoun may refer to: Sir James Colquhoun, 3rd Baronet, of Colquhoun (died c. 1680), of the Colquhoun baronets Sir James Colquhoun, 4th Baronet, of Colquhoun (died c. 1688), of the Colquhoun baronets Sir James Colquhoun, 1st Baronet (1714–1786), of the Colquhoun baronets Sir James Colquhoun, 2nd Baronet (1741–1805), of the Colquhoun baronets James Colquhoun (diplomat) (1780–1855) Sir James Colquhoun, 3rd Baronet, of Luss (1774–1836), MP for Dunbartonshire 1799–1806 Sir James Colquhoun, 4th Baronet, of Luss (1804–1873), MP for Dunbartonshire 1837–41, Lord Lieutenant of Dunbartonshire Sir James Colquhoun, 5th Baronet (1844–1907), of the Colquhoun baronets, Lord Lieutenant of Dunbartonshire James Colquhoun (cricketer) (1893–1977), Scottish cricketer and British Army officer See also Colquhoun (surname)