Calais (UK: KAL-ay, US: kal-AY, traditionally KAL-iss, French: [kalɛ] ) is a French port city in the Pas-de-Calais department, of which it is a subprefecture. Although Calais is by far the largest city in Pas-de-Calais, the department's prefecture is its third-largest city of Arras. The population of the city proper is 67,544; that of the urb...