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Colin Campbell (probate judge) (1752–1834), lawyer, probate judge, customs official in Nova Scotia • Sir
Colin Campbell (British Army officer, born 1776) (1776–1847), Governor of Nova Scotia and Ceylon •
Colin Campbell (Nova Scotia politician) (1822–1881), merchant and politician in Nova Scotia, American •
Colin H. Campbell (1859–1914), provincial cabinet minister in Manitoba, Canada •
Colin Campbell (Ontario politician) (1901–1978), Canadian politician, Member of Parliament, president of the International Curling Federation •
Colin Campbell (Scottish politician) (born 1938), former Member of the Scottish Parliament •
Colin Campbell, Lord Malcolm (born 1953), Scottish judge •
Colin Minton Campbell (1827–1885), British Member of Parliament for North Staffordshire •
Colin P. Campbell (1877–1956), former Speaker of the Michigan House of Representatives •
Colin Campbell (Australian politician) (1817–1903), pastoralist and politician in colonial Victoria ==Education and academia==