Nikolayevka () is a rural locality (a khutor) in Bolshevistskoye Rural Settlement, Yelansky District, Volgograd Oblast, Russia. The population was 220 as of 2010.
Nikolayevka is located on Khopyorsko-Buzulukskaya Plain, on the left bank of the Buzuluk River, 62 km south of Yelan (the district's administrative centre) by road. Bolshevik is the nearest rural locality.