Ślepkowo Królewskie [ɕlɛpˈkɔvɔ kruˈlɛfskʲɛ] is a village in the administrative district of Gmina Radzanowo, within Płock County, Masovian Voivodeship, in east-central Poland. It lies approximately 2 kilometres (1 mi) west of Radzanowo, 13 km (8 mi) east of Płock, and 87 km (54 mi) north-west of Warsaw.