Mould is a surname. Notable people with the surname include:
Bob Mould (born 1960), American musician with alternative rock bands Hüsker Dü and SugarBrooks K. Mould, American music publisherBilly Mould (1919-1999), English footballerJacob Wrey Mould (1825-1886), English-born architect, illustrator, linguist and musicianJames Mould (1870-1944), Canadian politicianJeremy Mould (born 1949), Australian astronomerJohn Mould (1910-1957), Australian Navy officer and recipient of the George CrossJon Mould (born 1991), Welsh racing cyclistPhilip Mould (born 1960), English art dealer and historianPeter "Boy" Mould (1916-1941), British Royal Air Force Second World War flying ace