The Bârlad is a river in eastern Romania, a left tributary of the river Siret. Its total length is 207 kilometres (129 mi). Its source is in the low hills between the Siret and Prut rivers, southwest of Iași. It flows generally south, through the cities of Negrești, Vaslui, Bârlad and Tecuci. The Bârlad river flows through the Romanian counties of Neamț, Vaslui and Galați. It flows into the Siret near Suraia.