Antonowo [antɔˈnɔvɔ] is a village in the administrative district of Gmina Giżycko, within Giżycko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 4 kilometres (2 mi) north of Giżycko and 88 km (55 mi) east of the regional capital Olsztyn.