Flood is a 2002 disaster thriller novel by Richard Doyle. Set in present-day London, the novel depicts a disastrous flood and fire of London, caused by a storm, and the consequential accident at an oil refinery, and failure of the Thames Barrier. The plot is similar to his 1976 novel Deluge, updated to include the construction of the Thames Flood Barrier. The book was adapted into a 2007 disaster film, Flood, directed by Tony Mitchell.