Mieczyn [ˈmjɛt͡ʂɨn] is a village in the administrative district of Gmina Krasocin, within Włoszczowa County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 6 kilometres (4 mi) north-east of Krasocin, 17 km (11 mi) east of Włoszczowa, and 31 km (19 mi) west of the regional capital Kielce.