Crowther is a surname, derived from the old Welsh musical instrument the crwth. Notable people with the surname include:
Arnold Crowther, stage-magician, puppeteer, and promoter of Wicca religionAntony Crowther, British computer programmerBosley Crowther (1905–1981), American film criticCharles Crowther (1831–1894), Australian politicianEmlyn Crowther (born 1949), New Zealand drummerGeoffrey Crowther, Baron Crowther (1907–1972), English politicianHal Crowther (born 1945), American journalist and essayistHilton Crowther (b.1879), English mill owner and football club chairmanJohn Edward Crowther, (1863–1931) English mill owner and philanthropistJoseph Stretch Crowther (1820–93) English architectLeslie Crowther (1933–1996), English comedianLiz Crowther (born 1954), English actressPatricia Crowther (born 1943), American cave explorerPaul Crowther (born 1953), English professor of philosophyPatricia Crowther (born 1927), promoter of Wicca religionSamuel Ajayi Crowther (1809–1891), Nigerian bishopStan Crowther (footballer) (born 1935), English footballerStanley Crowther (1925–2013), English politicianWilliam Crowther (born 1936), American computer programmerWilliam Crowther (Australian politician) (1817–1885), Australian politicianWilliam Crowther (1834 – 1900), New Zealand politician