The Drowned World (1962), by J. G. Ballard, is a British science fiction novel that depicts a post-apocalyptic future in which global warming, caused by increased solar radiation, has rendered uninhabitable much of the surface of planet Earth. The story follows a team of scientists who are researching the environmental developments that occurred in the flooded city of London. The novel is an expansion of the novella "The Drowned World", which was first published in Science Fiction Adventures magazine, in the January 1962 issue, Vol. 4, No. 24.

James Graham Ballard was an English novelist and short story writer, satirist and essayist known for psychologically provocative works of fiction that explore the relations between human psychology, technology, sex and mass media. Ballard first became associated with New Wave science fiction for post-apocalyptic novels such as The Drowned World (1962), but later courted political controversy with the short-story collection The Atrocity Exhibition (1970), which includes the story "Why I Want to Fuck Ronald Reagan" (1968) and the novel Crash (1973), a story about car-crash fetishists.