Alexander Daniel Allan Macmillan, 2nd Earl of Stockton (born 1943) is a Conservative Party politician in the United Kingdom. He was a member of the European Parliament for South West England from 1999 to 2004.
He was one of the hereditary peers to have been excluded from the House of Lords. He inherited his peerage from his grandfather, Harold Macmillan, 1st Earl of Stockton, who was Prime Minister of the United Kingdom from 1957 to 1963. Both his father Maurice Victor Macmillan (1920-1984) and his grandfather preceded him as Chairman of Macmillan Ltd., the publishing house long owned by the family. The 2nd Earl sold it to the German Holtzbrinck group.
