A Clockwork Orange is a dystopian novel by Anthony Burgess, published in 1962. Set in a near-future English society with a culture of extreme youth violence, it features a teenage anti-hero who provides a first-person narrative of his violent exploits and his experiences with state authorities aiming to reform him.

It is partially written in a slang influenced by Russian and English, called "Nadsat." The novel is a satire of English society. It was inspired by a real-life event that occurred in 1944: the rape of the author's first wife, Lynne, by four American soldiers.

The novel is challenging to read, as Burgess invented a slang language spoken by teenagers. This language creates a sense of alienation for readers, and the Slavic terms and rhyming words require deduction for understanding. Most editions of the novel come with a glossary.

In 2005, A Clockwork Orange was included in Time magazine’s list of the 100 best English-language novels written since 1923, and it was named by the Modern Library and its readers as one of the 100 best English-language novels of the 20th century. The original manuscript is housed at McMaster University in Hamilton, Ontario, Canada, after the university purchased it in 1971.