Nikolskoye () is a rural locality (a selo) in Kuyagansky Selsoviet, Altaysky District, Altai Krai, Russia. The population was 34 as of 2013. There are 3 streets.
Nikolskoye is located on the Barancha River, 38 km southwest of Altayskoye (the district's administrative centre) by road. Kuyagan is the nearest rural locality.