Zalesie [zaˈlɛɕɛ] is a village in the administrative district of Gmina Kluczewsko, within Włoszczowa County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 8 kilometres (5 mi) north-east of Kluczewsko, 15 km (9 mi) north of Włoszczowa, and 48 km (30 mi) west of the regional capital Kielce.