Opoczno is a town in south-central Poland, in eastern part of Łódź Voivodeship, previously in Piotrków Trybunalski Voivodeship. It has a long and rich history, and in the past it used to be one of the most important urban centers of northwestern Lesser Poland. Currently, Opoczno is an important road and rail junction; its patron saint is Saint Cecilia, and the town is famous across Poland for its folklore.