Novonikolayevka (Russian: Новониколаевка) is a rural locality (a village) in Nizhneulu-Yelginsky Selsoviet, Yermekeyevsky District, Bashkortostan, Russia.

Novonikolayevka is located 4 km southeast of Yermekeyevo (the district's administrative centre) by road.

Nizhneulu-Yelga is the nearest rural locality.

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