How is an English surname, derived either from a contraction of Howe, or from various place names such as How, Cumbria. It may also be a variant spelling of the Chinese surname Hao. Notable people with the surname include:

Bradford How (born 1977), Canadian video jockey Charles T. How (1840–1909), American real-estate developer Henry How (1828–1879), British-Canadian chemist, geologist and mineralogist James Eads How (1874–1930), American hobo organizer Jamie How (born 1981), New Zealand cricketer Jane How (born 1951), English actress Martin How (1931–2022), British composer and organist Richard How (born 1944), Australian rugby union player Walter How (1885–1972), English sailor William Walsham How (1823–1897), English bishop of Wakefield

See also Howe (surname) Hao (surname)