Zybułtowo [zɨbuu̯ˈtɔvɔ] (German: Seewalde) is a village in the administrative district of Gmina Grunwald, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 27 kilometres (17 mi) south-east of Ostróda and 38 km (24 mi) south-west of the regional capital Olsztyn.