Rudnik (Polish pronunciation: [ˈrudɲik]) is a village in the administrative district of Gmina Będków, within Tomaszów Mazowiecki County, Łódź Voivodeship, in central Poland. It lies approximately 5 kilometres (3 mi) east of Będków, 16 km (10 mi) north-west of Tomaszów Mazowiecki, and 33 km (21 mi) south-east of the regional capital Łódź.