Ülkü is a neighborhood in Mudanya District, in Bursa Province, Türkiye. Ülkü lies 1.9 km from the Katırlı Dağları mountains. It has 1,000 inhabitants. The nearest city is Mudanya, 7.1 km to the north. Among the landmarks around are Apamea Myrlea (7.1 km), Grand Mosque of Bursa (21 km) and Orhan Gazi Mosque (21 km). Among the natural features are Ayvaini Cave (25 km).