- Source: James Dewar (disambiguation)
James Dewar (1842–1923) was a Scottish chemist and physicist.
James Dewar may also refer to:
James Dewar (musician) (1942–2002), Scottish bassist and vocalist
James Dewar (baker) (1897–1985), Canadian inventor of the Twinkie snack cake
James Dewar (judge) (1797–1830), British jurist and the Chief Justice of the Supreme Court of Bombay
James Dewar (cricketer), English cricketer and British Army officer
James Dewar (footballer), of Everton F.C. season 1892–93
See also
James Dewar Bourdillon, British civil servant
Jim Dewar (disambiguation)