Leviathan (Hobbes book)

Leviathan
Frontispiece of Leviathan by Abraham Bosse, with input from Hobbes
AuthorThomas Hobbes
LanguageEnglish, Latin
GenrePolitical philosophy
Publication date
April 1651
Publication placeEngland
ISBN978-1439297254
TextLeviathan at Wikisource

Leviathan or The Matter, Forme and Power of a Commonwealth Ecclesiasticall and Civil, commonly referred to as Leviathan, is a work of social and political theory by the English empiricist philosopher and political theorist Thomas Hobbes (1588–1679), published in 1651 (revised Latin edition 1668). Its name derives from the chaotic Leviathan sea serpent of the Hebrew Bible and other earlier mythologies.

The work concerns the structure of society and legitimate government, and is regarded as one of the earliest and most influential examples of social contract theory.

Written during the English Civil War (1642–1651), it argues for a social contract and rule by an absolute sovereign. Hobbes asserts that civil war and the "nasty, brutish and short" state of nature ("the war of all against all") could be avoided only by a strong, undivided government.