Heatwave! is an American disaster movie that was broadcast on the ABC television network on January 26, 1974. It was an ABC Movie of the Week. Its running time was 90 minutes. The film was directed by Jerry Jameson, produced by Herbert F. Solow and Harve Bennett.

The plot focuses upon the effect an intense and prolonged heat wave and water shortage has on Frank Taylor and his pregnant wife Laura Taylor, both while they are in the city where they live and after they decide to relocate.