a town of France, capital of an arrondissement in the department of Ardennes, on the right bank of the Meuse, 160 miles N.E. of Paris. It stands on uneven ground, and is surrounded by walls, moats, and other fortifications, so as to be an important place for the defence of France on the side of Belgium. The castle, which stands on a hill to the S.E. of the town, contains an arsenal, and near this and in other parts there are three large barracks. The streets are mostly broad and clean, and the houses well built of stone. There are several fine public walks and fountains; and the chief buildings are Roman Catholic and Protestant churches, a theatre, public library, and hospital. Sedan is an important manufacturing town, its principal productions being broad-cloth and other woollen fabrics. Linen, leather, hosiery, hardware, firearms, &c., are also made here. The town has given its name to the vehicles called sedans, or sedan-chairs, which were first made here. They were introduced into this country in 1581, and came into general use about 1649. An active trade is carried on in corn, cattle, hemp, flax, and manufactured goods. The town has law-courts, a chamber of agriculture, and a college. The celebrated Marshal Turenne was a native of this place. Pop. (1856) 13,304.