Erewhon: or, Over the Range (e-re-whon) is a novel by Samuel Butler which was first published anonymously in 1872. The title is also the name of a country, supposedly discovered by the protagonist. In the novel, it is not revealed where Erewhon is, but it is clear that it is a fictional country. Butler meant the title to be read as "nowhere" backwards even though the letters "h" and "w" are transposed, as it would have been pronounced in his day (and still is in some dialects of English). The book is a satire on Victorian society.
The first few chapters of the novel dealing with the discovery of Erewhon are in fact based on Butler's own experiences in New Zealand where, as a young man, he worked as a sheep farmer on Mesopotamia Station for about four years (1860–64), and explored parts of the interior of the South Island and which he wrote about in his A First Year in Canterbury Settlement (1863).

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