Zarzęcin [zaˈʐɛnt͡ɕin] is a village in the administrative district of Gmina Mniszków, within Opoczno County, Łódź Voivodeship, in central Poland. It lies approximately 9 kilometres (6 mi) north-west of Mniszków, 25 km (16 mi) west of Opoczno, and 52 km (32 mi) south-east of the regional capital Łódź.