Allwood is a surname. Notable people with the surname include:
Jens Allwood (born 1947), linguist Matthew Allwood (born 1992), Australian rugby league player Ralph Allwood (born 1950), once head of music at Eton College, England Robert Allwood (1803–1891), English-born clergyman and academic in colonial Australia
See also Allwood Green, an area of Suffolk, England