Colquhoun Grant may be:
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Colquhoun Grant (British intelligence officer) (1780–1829), British Army intelligence officer
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Colquhoun Grant (British cavalry general) (1772–1835), British Army cavalry general and MP
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Walter Colquhoun Grant
Walter Colquhoun Grant (27 May 1822 – 27 August 1861) was a British Army officer and a pioneer settler in the former Oregon Country (shared / temporarily jointly occupied with the Americans of the United States) in western British North Am ...
(1822–1861), British Army officer and a pioneer settler in British Columbia.
{{hndis, Grant, Colquhoun