Nereju is a commune located in Vrancea County, Romania. It is composed of five villages: Brădăcești, Chiricani, Nereju, Nereju Mic and Sahastru.
Nereju, Nereju Mic and Brădăcești lie along the Zăbala River, while Chiricani and Sahastru are situated on the surrounding hills and valleys.