Haswell is a surname. Notable people with the surname include:
Anthony Haswell (passenger rail advocate), b. 1931, American lawyer Anthony Haswell (printer) (1756–1816), British-American newspaper publisher and postmaster of the Vermont Republic Archibald Eliot Haswell Miller (1887—1979), Scottish artist, appears simply with surname Miller or with dual surname Haswell Miller Carole Ann Haswell, astrophysicist Charles Haynes Haswell (1809–1907), American nautical engineer, politician and author Elizabeth Haswell, American biologist Jock Haswell, pseudonym of Chetwynd John Drake Haswell (1919-2018), English military and intelligence author John Haswell (1812–1897), Scottish-Austrian locomotive design engineer Josephine Haswell Miller (1890-1975), born Elizabeth Josephine Cameron, Scottish artist, wife of Archibald E. Haswell Miller Keeley Halswelle (1831-1891), born John Keeley Haswell, British artist Percy Haswell (1871–1945), American actress Robert Haswell (1768–1801?), American maritime trader and naval officer Russell Haswell (born 1970), British multidisciplinary artist Susanna Rowson (1762–1824), born Susanna Haswell, British-American actress, novelist and educator Thomas Haswell (1807–1889), British educator and music composer William Aitcheson Haswell (1854–1925), Scottish-Australian zoologist
See also Wyndham Halswelle (1882–1915), British Olympian and soldier, sometimes referred to as Haswell in contemporary accounts