Hassall is a surname. Notable people with the surname include:
Arthur Hill Hassall (1817–1894), British physician, chemist and microscopist Cedric Hassall, New Zealand chemist Charlie Hassall (1863–?), English footballer Christopher Hassall (1912–1963), English actor, dramatist, librettist, lyricist and poet Eliza Marsden Hassall (1834–1917), Australian philanthropist Harold Hassall (1929–2015), English footballer Ian Hassall, New Zealand paediatrician Imogen Hassall (1942–1980), English actress Joan Hassall (1906–1988), English wood engraver and illustrator Joe Hassall (1871–1895), English footballer John Hassall (disambiguation), multiple people Jon Hassall (born 1973), Australian rules footballer Nanette Hassall (born 1947), Australian dancer and choreographer Rowland Hassall (1768-1820), Early Australian settler, missionary Thomas Hassall (1840–1920), Australian politician Thomas Hassall (priest) (1794-1868), Australian clergyman