İznik (Turkish pronunciation: [izˈnik]) is a municipality and district of Bursa Province, Turkey. Its area is 753 km, and its population 44,236 (2022). The town is at the site of the ancient city of Nicaea, from which the modern name derives. The town lies in a fertile basin at the eastern end of Lake İznik, with ranges of hills to the north and south. As the crow flies, the town is only 90 kilometres (56 miles) southeast of Istanbul but by road it is 200 km (124 miles) around the Gulf of İzmit. It is 80 km (50 miles) by road from Bursa.
İznik has been a district centre of the province of Bursa since 1930 but belonged to the district of Kocaeli between 1923 and 1927. It was a township of Yenişehir district (connected to Bilecik before 1926) between 1927 and 1930.
