The Putna is a right tributary of the river Siret in Vrancea County in Romania, in the historical region of Moldavia. It discharges into the Siret in CÃÂlienii Noi, near Vulturu.
The Putna's basin has a total surface of ; 31% of this surface is located in the mountain area, draining the eastern flank of the Vrancea Mountains.
The total length of the Putna from its source to its confluence with the Siret is .
The following rivers are tributaries to the river Putna (from source to mouth):
The following towns and villages are situated along the river Putna, from source to mouth: GreÃÂu, LepÃÂa, Tulnici, NegrileÃÂti, BârseÃÂti, Valea SÃÂrii, Vidra, Garoafa, VânÃÂtori.