Topuk is a neighborhood in Orhaneli District, in Bursa Province, Türkiye. Topuk lies at 743 m above sea level, in the Anatolian plateau mountains. It has 152 inhabitants. The nearest city is Bursa, 24 km to the north. Among the landmarks around are Grand Mosque of Bursa (23 km), Orhan Gazi Mosque (23 km) and Green Mosque (23 km).