Panic in Year Zero! is a 1962 American black-and-white survival science fiction film from American International Pictures. It was produced by Arnold Houghland and Lou Rusoff, directed by Ray Milland, who also stars with Jean Hagen, Frankie Avalon, Mary Mitchel, and Joan Freeman. The original music score was composed by Les Baxter. The screenplay was written by John Morton and Jay Simms. The film was released by AIP in 1962 as a double feature with Tales of Terror.

Jean Hagen was an American actress best known for her role as Lina Lamont in Singin' in the Rain (1952), for which she was nominated for an Academy Award for Best Supporting Actress. Hagen was also nominated three times for an Emmy Award for Best Supporting Actress in a Comedy Series for her role as Margaret Williams on the first three seasons (1953–56) of the television series The Danny Thomas Show.