Târgu Trotuș

Târgu Trotuș () is a commune in Bacău County, Western Moldavia, Romania. It is composed of three villages: Târgu Trotuș, Tuta (Diószeg), and Viișoara (Viszóra).

At the 2021 census, the commune had a population of 5,330, an increase from the 2011 census, when the population was 4,969. At the 2002 census, 99.9% of inhabitants were ethnic Romanians; 63.3% were Roman Catholic and 36.5% Romanian Orthodox.

Natives Jeremiah of Wallachia (1556–1625), Capuchin lay brother