Laidlaw is a surname. Notable people with the surname include:
Alex Laidlaw (1877–1933), Scottish sportsman
Daniel Laidlaw (1875–1950), Scottish piper, recipient of the Victoria Cross
Diana Laidlaw (born 1951) South Australian politician
Donald Laidlaw (1923–2009) South Australian politician, father of Diana
Frank Fortescue Laidlaw (1876–1963), British biologist
Greig Laidlaw (born 12 October 1985), Scottish rugby player
Irvine Laidlaw, Baron Laidlaw (born 1942), Scottish businessman and peer
Marc Laidlaw (born 1960), American writer
Ross Laidlaw (author), Scottish writer, active since 1979
Ross Laidlaw (footballer) (born 1992), Scottish footballer
Roy Laidlaw (born October 5, 1953), Scottish rugby player
