Soltonsky District (Russian: Солто́нский райо́н) is an administrative[1] and municipal[4] district (raion), one of the fifty-nine in Altai Krai, Russia.

It is located in the east of the krai.

The area of the district is 3,020 square kilometers (1,170 sq mi).

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

[7] The population of Solton accounts for 32.2% of the district's total population.