Moinești (Romanian pronunciation: [mojˈneʃtʲ] ⓘ; Hungarian: Mojnest) is a city in Bacău County, Western Moldavia, Romania, with a population of 19,728 as of 2021[update].

The city is situated in the foothills of the Tarcău Mountains, at an altitude of 400 m (1,300 ft), on the banks of the river Tazlăul Sărat.

In 1921, Moinești was designated a comună urbană ("urban commune"), with its own coat of arms and local administration, but a step short of being considered a city.

After 1990, however, following the nationwide industry privatization, Moinești's economy changed dramatically, at some points reaching level of unemployment of over 20%.

Tourist attractions in Moinești include: Băi Park (with healing mineral waters), Pine Tree Park, Ghindaru Hill (where archaeologists discovered artefacts of the pre-Cucuteni culture, over 5,000 years old), the Dada Monument (dedicated to Tristan Tzara), Cetățuia (Dacian fortified city archaeologically certified), and the Jewish Cemetery (where the oldest tombstone with recognisable text dates back to 1692).