Dukes
- James Hamilton, 1st Duke of Hamilton (1606–1649), heir to the throne of Scotland
- James Hamilton, 4th Duke of Hamilton (1658–1712), Scottish nobleman
- James Hamilton, 5th Duke of Hamilton (1703–1743), Scottish nobleman
- James Hamilton, 6th Duke of Hamilton (1724–1758), Scottish nobleman
- James Hamilton, 7th Duke of Hamilton (1755–1769), Scottish nobleman
- James Hamilton, 1st Duke of Abercorn (1811–1885), twice served as Lord Lieutenant of Ireland
- James Hamilton, 2nd Duke of Abercorn (1838–1913), British nobleman and diplomat
- James Hamilton, 3rd Duke of Abercorn (1869–1953), first Governor of Northern Ireland
- James Hamilton, 4th Duke of Abercorn (1904–1979), Northern Irish senator
- James Hamilton, 5th Duke of Abercorn (born 1934), Northern Irish politician
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