Prague 3 is a municipality in Prague, in the Prague Region, Czechia. Prague 3 lies at 237 m above sea level. It has 82,149 inhabitants (2024). The nearest city is Prague, 2.5 km to the southwest. Among the landmarks around are Prague Castle (4.7 km), Charles Bridge (3.8 km) and Karlštejn (26 km). Among the natural features are Bílá hora (10.4 km) and Parukářka Park (0.3 km).
Also written 3.