Susaninsky District (Russian: Суса́нинский райо́н) is an administrative[1] and municipal[6] district (raion), one of the twenty-four in Kostroma Oblast, Russia.

It is located in the west of the oblast.

The area of the district is 1,050 square kilometers (410 sq mi).

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

[10] The population of Susanino accounts for 52.6% of the district's total population.