Random Harvest is a novel written by James Hilton, first published in 1941. Like previous Hilton works, including Lost Horizon and Goodbye, Mr. Chips, the novel was immensely popular, placing second on The New York Times list of best-selling novels for the year.

It is set in the period immediately preceding the outbreak of the Second World War. It is told in the first person of Harrison, and by means of two extended external analepses tells the story of Charles Rainier, a wealthy businessman and politician, from the time he was invalided out of the army during World War I, his subsequent memory loss and partial recovery, his assuming control of the family business to his attempts to recover his memory just as Hitler invades Poland.