Crowther is a surname, derived from the old Welsh musical instrument the crwth, and may refer to:
- Arnold Crowther, stage-magician, puppeteer, and promoter of Wicca religion
- Antony Crowther, British computer programmer
- Bosley Crowther (1905–1981), American film critic
- Charles Crowther (1831–1894), Australian politician
- Emlyn Crowther (born 1949), New Zealand drummer
- Geoffrey Crowther, Baron Crowther (1907–1972), English politician
- Hal Crowther (born 1945), American journalist and essayist
- Joseph Stretch Crowther (1820–93} English architect
- Leslie Crowther (1933–1996), English comedian
- Liz Crowther (born 1954), English actress
- Patricia Crowther (born 1943), American cave explorer
- Paul Crowther (born 1953), English professor of philosophy
- Patricia Crowther (born 1927), promoter of Wicca religion
- Samuel Ajayi Crowther (1809–1891), Nigerian bishop
- Stan Crowther (footballer) (born 1935), English footballer
- Stanley Crowther (born 1925), English politician
- Timothy Crowther (British politician)
- William Crowther (born 1936), American computer programmer
- William Crowther (Australian politician) (1817–1885), Australian politician
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