Czostków [ˈt͡ʂɔstkuf] is a village in the administrative district of Gmina Krasocin, within Włoszczowa County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 5 kilometres (3 mi) south-east of Krasocin, 14 km (9 mi) east of Włoszczowa, and 33 km (21 mi) west of the regional capital Kielce.