巴克乌 （罗马尼亚语:Bacău、德语:Barchau、波兰语:Baków）是罗马尼亚的一个城市。属摩尔达维亚地区。巴克乌是巴克乌县的首府所在地。

Bacău (Romanian pronunciation: [baˈkəw]; German:Barchau, Hungarian:Bákó) is the main city in Bacău County, Romania. At the 2011 census it had a population of 144,307, making it the 15th largest city in Romania. The city is situated in the historical region of Moldavia, at the foothills of the Carpathian Mountains, and on the Bistrița River (which meets the Siret River about 8 kilometres (5.0 mi) to the south of Bacău). The Ghimeș Pass links Bacău to the region of Transylvania.