Legg is a surname. Notable people with the surname include:
Adrian Legg, English guitar player
Andy Legg (born 1966), Welsh footballer
Barry Legg (born 1949), British former Member of Parliament
John Legg (born 1975), American educator and politician
John Legg (footballer), New Zealand footballer
John Wickham Legg (1843-1921), English medical doctor and theologian
Stuart Legg (1910-1988), British documentary filmmaker
Thomas Legg (born 1935), British former senior civil servant
Fictional characters:
Harold Legg, character on the soap opera EastEnders
