Cavaignac is a surname. Notable people with the surname include: Jean-Baptiste Cavaignac (1762–1829), French politician His eldest son, Eleonore Louis Godefroi Cavaignac (1801–1845), journalist His second son, Louis Eugène Cavaignac (1802–1857), general and politician Louis Eugène's son, Jacques Marie Eugène Godefroy Cavaignac (1853–1905), politician Jean Baptiste's (1762–1829) brother, (1765–1845), politician Jean Baptiste's (1762–1829) brother, Jacques-Marie, vicomte Cavaignac (1773–1855), general