Österby is a village in Halmstad Municipality, in Halland County, Sweden. Österby lies at 57 m above sea level. The nearest city is Halmstad, 11.8 km to the southwest. Beaches nearby: Västra stranden (13 km). Among the landmarks around are St. Nicholas Church (11.9 km), Vapnö Church (10.6 km) and Enslöv Church (2.8 km). Among the natural features are Danska fall (12.9 km).