The People's Commissariat for Water Transport (), usually abbreviated () or () and also sometimes NKVT, was the Soviet People's Commissariat for Water Transportation. It was responsible, amongst other things, for running the Soviet merchant maritime fleet.
Narkomvod was established on January 30, 1931, in the middle of a re-evaluation of Soviet policy about the railways and the splitting off the People's Commissariat of Transportation and as part of an overall government reorganization. The first people's commissar for Narkomvod was Nikolay Mikhaylovich Ianson, who had formerly been a people's commissar in the Russian Socialist Federative Soviet Republic.
By April 1931, Narkomvod had five directorates, for operations in the Baltic, Northern, Black, Azov, and Caspian Seas. Ianson resigned on March 13, 1934, in order to become the deputy chief of Glavsevmorput. He was replaced by Nikolay Pakhomov.
On April 9, 1939, the People's Commissariat was abolished and split into the People's Commissariat of the River Fleet and the People's Commissariat of the Maritime Fleet.
The head of the People's Commissariat was a People's Commissar. The following People's Commissars of Water Transport were appointed: