Akçabük is a neighborhood in Orhaneli District, in Bursa Province, Türkiye. Akçabük lies at 389 m above sea level, in the Anatolian plateau mountains. It has 153 inhabitants. The nearest city is Beşevler, 29 km to the north. Among the landmarks around are Grand Mosque of Bursa (29 km), Orhan Gazi Mosque (29 km) and Green Mosque (29 km). Among the natural features are Ayvaini Cave (27 km).