Sayansky District (Russian: Сая́нский райо́н) is an administrative[1] and municipal[6] district (raion), one of the forty-three in Krasnoyarsk Krai, Russia.

It is located in the southeast of the krai and borders Rybinsky District in the north, Irbeysky District in the east, Irkutsk Oblast in the southeast, Kuraginsky District in the south, and Partizansky District in the west.

The area of the district is 8,031 square kilometers (3,101 sq mi).

[2] Its administrative center is the rural locality (a selo) of Aginskoye.

[2] As of 2017, the Head of the district is Igor V. Danilin.