Alcanar (Catalan pronunciation: [əɫkəˈna]) is a Spanish municipality of the Catalan comarca of Montsià, in the Tarragona province. It is a coastal town on the Mediterranean Sea. The Serra del Montsià range and its foothills rises above the town and its surroundings. According to data from 2006 its population is 9,620 inhabitants, although this increased the next year, to 9,969.