Colin Campbell may refer to:
- Colin Campbell, 1st Earl of Argyll (c. 1433–1493), Scottish nobleman
- Colin Campbell, 3rd Earl of Argyll (c. 1486–1535), Scottish nobleman and soldier
- Colin Campbell, 6th Earl of Argyll (1541/46–1584), Scottish nobleman and politician
- Sir Colin Campbell, 2nd Baronet (1577–1640), Scottish nobleman
- Sir Colin Campbell, 1st Baronet, of Lundie (died c. 1650), Scottish noble
- Colin Campbell, 7th Earl Cawdor (born 1962), Scottish earl and architect
- Lord Colin Campbell (1853–1895), MP, younger son of eighth Duke of Argyll
- 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
- Colin Campbell (Australian sportsman) (1872–1907), Medical doctor, Australian footballer for Essendon and cricketer
- Colin Campbell (footballer, born 1883) (active in 1907–1910), footballer for both Argentina and Chile
- Colin Campbell (footballer, born 1918) (1918–2003), Australian footballer for Collingwood
- Colin Campbell (footballer, born 1956), Scottish association football player
- Colin Campbell (cricketer, born 1977), English cricketer
- Colin Campbell (cricketer, born 1884) (1884–1966), Scottish-born New Zealand cricketer
- Colin Campbell (field hockey) (1887–1955), British Olympic field hockey player
- Colin Campbell (ice hockey, born 1953), Canadian ice hockey player, coach and executive
- Colin Campbell (ice hockey, born 1991), Canadian professional ice hockey player
- Colin Campbell (Olympian) (born 1946), British Olympian who competed in both the Summer and Winter Olympic games (track and field and bobsleigh)
- Colin Campbell (murderer) (born 1946 or 1947), British double murderer, convicted of the cold case 1981 murder of Claire Woolterton in 2013
- Colin Campbell, 1st Baron Colgrain (1866–1954), British banker
- Colin "Caesar" Campbell, (1946-2021), Australian outlaw biker and gangster.
- Colin Campbell (Canadian bishop) (1931–2012), Catholic bishop of Antigonish
- Colin Campbell (New Zealand bishop) (born 1941), Catholic bishop of Dunedin
- Sir Colin Campbell (British Army officer, born 1754) (1754–1814), British Army general
- Colin Campbell (entrepreneur), Canadian 21st century serial Internet entrepreneur
- Colin Campbell, first Major-Commandant of the 100th Regiment of Foot
- Colin Campbell (British priest) (1863–1916), Archdeacon of Wisbech
- Sir Colin Campell of Peterhead, best known under her later name Danmark of Copenhagen