北顿涅茨河是俄罗斯的河流，发源自别尔哥罗德以北的中俄罗斯高地，向东南流经乌克兰的卡尔可夫州、顿涅茨克州和卢甘斯克州，最后在俄罗斯罗斯托夫州离亚速海100公里处流入顿河，河道全长1,053公里。

The Siverskyi Donets (Ukrainian:Сіверський Донець) or Seversky Donets (Russian:Северский Донец), usually simply called the Donets, is a river on the south of the East European Plain. It is the fourth longest river in Ukraine. Donets originates in the Central Russian Upland, north of Belgorod, flows south-east through Ukraine (Kharkiv, Donetsk and Luhansk Oblasts) and then again through Russia (Rostov Oblast) to join the Don River, about 100 km (62 mi) from the Sea of Azov. The Donets is the fourth largest river in Ukraine and the biggest in the Eastern Ukraine. It is an important source of fresh water in the east of the country. It gives its name to the Donets Basin, known commonly as the Donbass, an important coal mining region in Ukraine.