Dubí is a town (město) in Teplice District, in the Ústí nad Labem Region, Czechia. Dubí lies at 389 m above sea level, in the Ore mountains. It has 8,114 inhabitants (2024). The nearest city is Teplice, 5.7 km to the southeast. Near the border: Germany, 5.5 km. Among the landmarks around are Duchcov Chateau (9.3 km), Osek Monastery (9.4 km) and Střekov Castle (19.2 km). Among the natural features are Doubravská hora (6.9 km) and Větruše (18.0 km).