The Day of the Locust is a 1939 novel by American author Nathanael West, set in Hollywood, California during the Great Depression, its overarching themes deal with the alienation and desperation of a broad group of odd individuals who exist at the fringes of the Hollywood movie industry.

In 1998, the Modern Library ranked The Day of the Locust #73 on its list of the 100 best English-language novels of the 20th century. Time magazine included the novel in its list of 100 best English-language novels from 1923 to 2005, and noted critic Harold Bloom included it in his list of canonical works in the book The Western Canon.