Alaaddinbey is a neighborhood in Nilüfer District, in Bursa Province, Türkiye. Alaaddinbey lies at 85 m above sea level, 2.3 km from the Uludağ mountains. It has 915 inhabitants. The nearest city is Beşevler, 5.4 km to the east. Among the landmarks around are Grand Mosque of Bursa (12.3 km), Orhan Gazi Mosque (12.5 km) and Green Mosque (13.4 km). Among the natural features are Ayvaini Cave (19.7 km).