JARNAC, a town of western France in the department of Charente, on the right bank of the river Charente, and on the rail way 23 m. W. of Angouleme, between that city and Cognac. Pop. (1931) 3,502. The church contains an interesting ogival crypt. Brandy, wine and wine-casks are made in the town. Jarnac was in 1569 the scene of a battle in which the Catholics defeated the Protestants.