Vallby is a village in Simrishamn Municipality, in Skåne County, Sweden. Vallby lies at 45 m above sea level. It has 75 inhabitants. The nearest city is Ystad, 25 km to the west. Beaches nearby: Hundbad Vårhallen (12 km). Among the landmarks around are Glimmingehus (2.0 km), The King's Grave (20 km) and Ale's Stones (16.0 km). Among the natural features are Röekillorna Spring (11.8 km).