James Williamson
James Williamson is the name of the following people:
- James Williamson (entrepreneur) (1813–1879), British entrepreneur
- James Williamson, 1st Baron Ashton (1842–1930), British businessman and politician (Liberal Party)
- James Williamson (film pioneer) (1855–1933), British film pioneer
- James Williamson (soccer player) (1869– ??) Irish soccer player
- James Williamson (musician) (born 1949), American guitarist and composer
- James Williamson (cyclist) (born 1989), New Zealand cyclist
- James Cassius Williamson (1845–1913), Australian actor and impresario
- James Mann Williamson (1849–1901), British physician
- James Whitfield Williamson (1925-2008), American businessman and politician (Louisiana)
