Chistoozyorny District (Russian: Чистоозёрный райо́н) is an administrative[1] and municipal[5] district (raion), one of the thirty in Novosibirsk Oblast, Russia.

The area of the district is 5,690 square kilometers (2,200 sq mi).

[2] Its administrative center is the urban locality (a work settlement) of Chistoozyornoye.

[3] Yudinsky District was formed in 1925 with its center in the village of Yudino which had been founded in 1686.

The Yudinsky Reach (Юдинский плёс) of Lake Chany is located in the district.