Cinq-Mars is an 1826 historical novel by the French writer Alfred de Vigny.

It portrays the rebellious conspiracy of Henri Coiffier de Ruzé, Marquis of Cinq-Mars during the reign of Louis XIII in the early sixteenth century.

[1] Cinq-Mars unsuccessfully attempted to overthrow the Chief Minister Cardinal Richelieu and was executed.

This and other early French historical novels A Chronicle of the Reign of Charles IX (1829) and The Hunchback of Notre-Dame (1831) were inspired by the popularity of British author Walter Scott's Waverley novels in France.

[2] It was de Vigny's only novel and also reflected the Gothic tone of the works of Ann Radcliffe.