Anthony Walter Patrick Hamilton was an English playwright and novelist. He was well regarded by Graham Greene and J. B. Priestley, and study of his novels has been revived because of their distinctive style, deploying a Dickensian narrative voice to convey aspects of inter-war London street culture. They display a strong sympathy for the poor, as well as an acerbic black humour. Doris Lessing wrote in The Times in 1968: "Hamilton was a marvellous novelist who's grossly neglected".

Gas Light is a 1938 thriller play, set in 1880s London, written by the British novelist and playwright Patrick Hamilton. Hamilton's play is a dark tale of a marriage based on deceit and trickery, and a husband committed to driving his wife insane in order to steal from her.