Bacău is the primary city located in Bacău County, Romania. It serves as a significant urban center within the historical region of Moldavia and currently holds the rank of the 14th largest city in the country, with a population of 136,087.
The city is geographically situated at the foothills of the Carpathian Mountains along the Bistrița River. It maintains a notable connection to the region of Transylvania via the Ghimeș Pass.