Smirnykhovsky District (Russian: Смирныхо́вский райо́н) is an administrative district (raion) of Sakhalin Oblast, Russia; one of the seventeen in the oblast.

[1] Municipally, it is incorporated as Smirnykhovsky Urban Okrug.

[5] It is located in the central part of the Island of Sakhalin.

The area of the district is 10,457.43 square kilometers (4,037.64 sq mi).

[citation needed] Its administrative center is the urban locality (an urban-type settlement) of Smirnykh.