Kotulin [kɔˈtulin] is a village in the administrative district of Gmina Toszek, within Gliwice County, Silesian Voivodeship, in southern Poland. It lies approximately 8 kilometres (5 mi) west of Toszek, 27 km (17 mi) north-west of Gliwice, and 48 km (30 mi) north-west of the regional capital Katowice.