Jesionowo [jɛɕɔˈnɔvɔ] is a village in the administrative district of Gmina Pieniężno, within Braniewo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 14 kilometres (9 mi) east of Pieniężno, 38 km (24 mi) south-east of Braniewo, and 48 km (30 mi) north of the regional capital Olsztyn.