Thomas Cochrane may refer to:
Thomas Cochrane, 8th Earl of Dundonald (1691–1778), Scottish nobleman and politician
Thomas Cochrane, 6th Earl of Dundonald (1702–1737), Scottish peer
Thomas Cochrane, 10th Earl of Dundonald (1775–1860), British naval officer and radical politician, Marquess of Maranhão in Brazil
Thomas Cochrane, 11th Earl of Dundonald (1814–1885), Scottish nobleman, son of the above, father of the 1st Baron Cochrane of Cults
Thomas Cochrane, 13th Earl of Dundonald (1886–1958), British Army officer, representative peer
Thomas Cochrane, 1st Baron Cochrane of Cults (1857–1951), Scottish Unionist politician and nobleman
Thomas (Robert) Cochrane (died 1482), favourite of King James III of Scotland
Thomas John Cochrane (1789–1872), Scottish naval officer of the English Navy and first governor of the colony of Newfoundland
Thomas Cochrane (doctor) (1866–1953), Scottish medical missionary to China
Tom Cochrane (born 1953), Canadian singer-songwriter and musician