Detropia is a 2012 American documentary film, directed by Heidi Ewing and Rachel Grady, about the city of Detroit, Michigan. It focuses on the decline of the economy of Detroit due to long-term changes in the automobile industry, and the effects that the decline has had on the city's residents and infrastructure.

The film's name came from a portmanteau of the words "Detroit" and "Utopia", and was inspired by an abandoned auto parts store, where the letter "A" in "AUTO" and the letters "R", "T", and "S" in "PARTS" were missing from the store's sign. The letter "I" had been painted into the appropriate part of the store front to make the sign read "UTO PIA".