Firlej [ˈfirlɛi̯] is a village in the administrative district of Gmina Szczerców, within Bełchatów County, Łódź Voivodeship, in central Poland. It lies approximately 8 kilometres (5 mi) north-east of Szczerców, 13 km (8 mi) west of Bełchatów, and 49 km (30 mi) south-west of the regional capital Łódź.