Tyazhinsky District (Russian: Тяжи́нский райо́н) is an administrative district (raion), one of the nineteen in Kemerovo Oblast, Russia.

[5] It is located in the northeast of the oblast.

The area of the district is 3,531 square kilometers (1,363 sq mi).

[2] Its administrative center is the urban locality (an urban-type settlement) of Tyazhinsky.

[8] The population of the administrative center accounts for 43.4% of the district's total population.