Östanvik is a village in Västervik Municipality, in Kalmar County, Sweden. Östanvik lies at 10 m above sea level. The nearest city is Västervik, 15.2 km to the southeast. Beaches nearby: Breviksbadet (14 km). Among the landmarks around are Lofta Church (8.4 km), Smalspårsjärnvägen Hultsfred–Västervik (15.7 km) and Loftahammar Church (7.4 km).