It Can't Happen Here is a 1935 dystopian political novel by American author Sinclair Lewis. Set in the fictionalized version of 1930s United States, it follows an American politician, Berzelius "Buzz" Windrip, who quickly rises to power to become the country's first outright dictator and Doremus Jessup, a newspaper editor who sees Windrip's fascist policies for what they are ahead of time and who becomes Windrip's most ardent critic. The novel was adapted into a play by Lewis and John C. Moffitt in 1936.

Political fiction employs narrative to comment on political events, systems and theories. Works of political fiction, such as political novels, often "directly criticize an existing society or present an alternative, even fantastic, reality". The political novel overlaps with the social novel, proletarian novel, and social science fiction.