Tretki [ˈtrɛtki] is a village in the administrative district of Gmina Żychlin, within Kutno County, Łódź Voivodeship, in central Poland. It lies approximately 8 kilometres (5 mi) east of Żychlin, 26 km (16 mi) east of Kutno, and 54 km (34 mi) north of the regional capital Łódź.