CANTU, or Canturio, a town of Italy, in the province of Como, about five miles south of the city of that name, in 45° 44' 24" N. lat. and 9° 7' 49" E. long. It is surrounded with walls, and possesses a parish church with a very fine tower, a town hall, a hospital, and a theatre. In the neighbourhood are iron mines that were wrought in the 10th century. Population, 7429.