Ratajno [raˈtai̯nɔ] (German: Panthenau) is a village in the administrative district of Gmina Łagiewniki, within Dzierżoniów County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 3 kilometres (2 mi) south-west of Łagiewniki, 20 km (12 mi) east of Dzierżoniów, and 42 km (26 mi) south-west of the regional capital Wrocław. The village has a population of 250.
Prior to 1945 it was in Germany. Following World War II the native German populace was expelled and replaced by Poles.
Coordinates: 50°46′50″N 16°48′20″E / 50.78056°N 16.80556°E