Nizhnevartovsky District (Russian: Нижнева́ртовский райо́н) is an administrative[1] and municipal[4] district (raion), one of the nine in Khanty-Mansi Autonomous Okrug, Russia.

The area of the district is 118,500 square kilometers (45,800 sq mi).

[7] Within the framework of administrative divisions, Nizhnevartovsky District is one of the nine in the autonomous okrug.

[1] The city of Nizhnevartovsk serves as its administrative center, despite being incorporated separately as a city of okrug significance—an administrative unit with the status equal to that of the districts.

The Ob and its tributary Vatinsky Yogan, as well as the Irtysh, are the main rivers.