Długie Kamieńskie [ˈdwuɡʲɛ kaˈmjɛɲskʲɛ] is a village in the administrative district of Gmina Ceranów, within Sokołów County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) north-east of Ceranów, 29 km (18 mi) north of Sokołów Podlaski, and 100 km (62 mi) north-east of Warsaw.