DIEPPE, a handsome sea-port town of France, in Upper Normandy, in the territory of Caux; with a good harbour, an old castle, and two handsome moles. The parish church of St James is an elegant structure; and there is a tower from which, in fine weather, the coast of England may be seen. The population amounts to 20,000. The principal trade consists in the fisheries, ivory, toys, and laces. It was bombarded by the English in 1694, and it is not now so considerable as it was formerly. It is seated at the mouth of the river Bethune, in E. Long. 1. 12. N. Lat. 49. 55.