Dewar may refer to:
People Arthur Dewar, Lord Dewar (1860–1917), Scottish politician and judge. Arthur Dewar (cricketer) (1934–2020), Scottish cricketer Connor Dewar (born 1999), Canadian ice hockey player Donald Dewar (Rt. Hon. Donald Campbell Dewar, 1937–2000), former Scottish politician and the first First Minister of Scotland Douglas Dewar (1875–1957), British ornithologist and critic of the theory of evolution Geordie Dewar (1867–1915), Scottish football player George Dewar (disambiguation), various people Isla Dewar (1946 – 2021), Scottish novelist and screenwriter Jackie Dewar (1923–2011), Scottish footballer Jacqueline Dewar, American mathematician James Dewar (disambiguation) Jim Dewar (disambiguation) John Dewar, 1st Baron Forteviot (1856–1929), Scottish businessman and MP John Dewar, 2nd Baron Forteviot (1885–1947), Scottish businessman and soldier John Michael Dewar (1883–1941), Scottish ornithologist Katherine Dewar (1943–2026), Canadian historian Kenneth Dewar (1879–1964), Vice-Admiral of the Royal Navy Kim Dewar, New Zealand swimmer Marion Dewar (1928–2008), Mayor of Ottawa, Canada, and MP Michael J. S. Dewar (1918–1997), English theoretical chemist Neil Dewar (1908–1982), Scottish football player Paul Dewar (1963–2019), Canadian teacher and MP Thomas Dewar, 1st Baron Dewar (1864–1930), Scottish whisky distiller William McLachlan Dewar, headmaster of George Heriot's School in Edinburgh, Scotland Michael Kenneth O’Malley Dewar (1942–2016), chief of Clan Dewar
Places Dewar (crater), a lunar impact crater Dewar Nunatak, Adelaide Island, Antarctica Dewar, Scottish Borders, Scotland Dewar, Iowa, United States Dewar, Oklahoma, United States Dewar Creek, British Columbia, Canada
Other uses Clan Dewar Dewar (caste), a fishing caste from India Vacuum flask, also known as a Dewar flask, a vacuum-insulated container used to maintain internal temperature for extended periods, named after British chemist James Dewar Cryogenic storage dewar, a specialized vacuum flask for extremely cold fluids Dewar benzene, an isomer of benzene named after James Dewar Dewar's, makers of a blended Scotch whisky, named after John Dewar and sons
See also Devar, 1966 Indian film Divar, island in Goa, India Divar (website), Iranian classifieds website Deewaar (disambiguation)