Erewhon: or, Over the Range () is a utopian novel by English writer Samuel Butler, first published in 1872, set in a fictional country discovered and explored by the protagonist. The book is a satire on Victorian society.
The first few chapters of the novel dealing with the discovery of Erewhon are based on Butler's own experiences in New Zealand; as a young man, he had worked there as a sheep farmer on Mesopotamia Station for four years (1860–1864), exploring parts of the interior of the South Island and writing about it in A First Year in Canterbury Settlement (1863).
The novel is one of the first to explore ideas of artificial intelligence, as influenced by Darwin's recently published On the Origin of Species (1859) and the machines developed out of the Industrial Revolution (late 19th...