A flashover is the near simultaneous ignition of all combustible material in an enclosed area.
Flashover may also refer to: Arc flash, also known as a flashover, an electric arc between exposed commutator segments in a motor or generator Flashover Recordings, a trance music record label Sympathetic detonation, or flashover, detonation of an explosive charge by a nearby explosion "Flashover", a song by Enhypen from Desire: Unleash, 2025 Flashover (film), a 2023 Chinese disaster film directed by Peng Shun of the Pang Brothers