乌沙克是土耳其的城市，也是乌沙克省的首府，位于该国西部，海拔高度890米，受地中海气候影响，每年平均降雨量539毫米，2010年人口180,414。

Uşak (Turkish pronunciation: [ˈuʃak]) is a city in the interior part of the Aegean Region of Turkey. The city has a population of 187.886 (2012 census) and is the capital of Uşak Province. The city was previously known by its Greek name of Ousakeion/Ουσάκειον.