Bozüyük (Turkish:[ˈbozyjyc]) is a city in Bilecik Province in the Marmara region of Turkey. It is the seat of Bozüyük District.[2] Its population is 71,806 (2021), making it the second most populous municipality in the province after Bilecik.[1] Bozüyük depends economically on Eskişehir. The town is 32 km away from Bilecik and 45 km away from Eskişehir. It consists of 10 quarters: Çarşı, Kasımpaşa, Tekke, Yeni, Yediler, 4 Eylül, Yeşilkent, Içköy, Akpınar and Yenidoğan.[3]