Krusin [ˈkruɕin] is a village in the administrative district of Gmina Koziegłowy, within Myszków County, Silesian Voivodeship, in southern Poland. It lies approximately 6 kilometres (4 mi) south of Koziegłowy, 13 km (8 mi) west of Myszków, and 36 km (22 mi) north of the regional capital Katowice.