Sowerby is a surname. Notable people with the surname include:
Sowerby family, a British family of naturalists and artistsArthur de Carle Sowerby (1885–1954), British explorer in ChinaCharlotte Caroline Sowerby (1820–1865), British natural history illustratorGeorge Brettingham Sowerby I (1788–1854), British malacologistGeorge Brettingham Sowerby II (1812–1884), British malacologistGeorge Brettingham Sowerby III (1843–1921), British malacologistJames Sowerby (1757–1822), British zoologist and painterJames Sowerby (1815–1834), British mycologistJames de Carle Sowerby (1787–1871), English scientist and artistJohn Edward Sowerby (1825–1870), artist and publisherE. Millicent Sowerby (1883–1977), English bibliographerFrancis Sowerby Macaulay, British mathematicianFred Sowerby (born 1948), Antigua and Barbuda sprinterGitha Sowerby (1876–1970), English playwrightJohn George Sowerby (1850–1914), English painter and illustratorLeo Sowerby (1895–1968), twentieth-century American composerMillicent Sowerby (1878–1967), English painter and illustrator