Pacific Blackout is a 1941 American mystery thriller film directed by Ralph Murphy and starring Robert Preston, Eva Gabor and Martha O'Driscoll. It was produced and distributed by Paramount Pictures.

Inventor and engineer Robert Draper is unjustly convicted for the murder of his partner. Just as he is being sent to prison, the prison truck crashes in the midst of a civil defense blackout, propelling him into a search for the real killers who framed him. Czech-American screenwriter Franz Schulz was billed as Francis Spencer for the film.