Alexander McNeill (1833 – 17 May 1915) was a 19th-century member of parliament from Southland, New Zealand. He was the son of Anne Elizabeth McNeill née Carstairs, and Alexander McNeill (1791–1850), brother of Duncan McNeill, Lord Colonsay (1793–1874) and of Sir John McNeill (1795–1883). His own brother was Major General Sir John McNeill VC (1831–1904). He and his brother John survived the wreck of the Orion in 1850, in which his parents and two sisters lost their lives. He represented the Wallace electorate from 1866 to 1869, when he resigned.