Erwood is both a given name and a surname, as well as being a place name. Notable people with this name include:
Given name William Erwood Old Jr. (1928–1982), American malacologist
Surname Francis Erwood (1824–1878), English racquet player Russel Erwood (born 1981), British jester, magician, and circus clown Scott Erwood (born 1987), Canadian BMX cyclist Marshall Erwood (born 2005), New Zealand track and road cyclist
See also Erwood, a village in Powys, Wales