Notable people with the surname Gault are:
In politics
Andrew Gault (1882–1958), Canadian army officer and MP in the UK parliament
Daniel Gault (1842–1912), Oregon politician
Matthew Hamilton Gault (1822–1887), Canadian politician
In sport
David Gault (born 1976), Australian rules footballer
Georges Gault (active early 20th century), French tennis player
Michael Gault (born 1983), Northern Ireland football (soccer) player
Mick Gault, English competitive shooter, nine times Commonwealth gold medallist
Willie Gault (born 1960), American football player
In other fields
Henri Gault (1929–2000), co-founder of Gault Millau restaurant guides
John Gault, American entrepreneur and inventor
Stanley Gault (born 1926), CEO of Rubbermaid
Thomas Gault (1938–2015), New Zealand judge
William Campbell Gault (1910–1995), American novelist
Fictional people
Lucy Gault, principal character in William Trevor's novel The Story of Lucy Gault
Captain Gault, an English sea captain in stories by William Hope Hodgson
Captain Gault, one of the Characters of Lost