Smolajny [smɔˈlai̯nɨ] (formerly Smołowo; in German, Schmoleinen, Schmolainen) is a village in the administrative district of Gmina Dobre Miasto, within Olsztyn County, Warmian-Masurian Voivodeship, in northern Poland. It lies on the Łyna River, approximately 5 kilometres (3 mi) north of Dobre Miasto and 28 km (17 mi) north of the regional capital Olsztyn.