Grajwo [ˈɡrai̯vɔ] is a village in the administrative district of Gmina Giżycko, within Giżycko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) south-east of Giżycko and 92 km (57 mi) east of the regional capital Olsztyn.