Koryciska [kɔrɨˈt͡ɕiska] is a village in the administrative district of Gmina Załuski, within Płońsk County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) north-east of Załuski, 17 km (11 mi) south-east of Płońsk, and 46 km (29 mi) north-west of Warsaw.