Mostki [ˈmɔstki] is a village in the administrative district of Gmina Suchedniów, within Skarżysko County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 5 kilometres (3 mi) east of Suchedniów, 7 km (4 mi) south of Skarżysko-Kamienna, and 28 km (17 mi) north-east of the regional capital Kielce.