Gronówek [ɡrɔˈnuvɛk] is a village in the administrative district of Gmina Złoczew, within Sieradz County, Łódź Voivodeship, in central Poland. It lies approximately 5 kilometres (3 mi) east of Złoczew, 21 km (13 mi) south of Sieradz, and 69 km (43 mi) south-west of the regional capital Łódź.