Bolsheromanovka () is a rural locality (a selo) and the administrative center of Bolsheromanovsky Selsoviet, Tabunsky District, Altai Krai, Russia. The population was 699 as of 2013. There are 8 streets.
Bolsheromanovka lies in the Kulunda Steppe to the west of lake Belenkoye. It is located 51 km north of Tabuny (the district's administrative centre) by road. Vesyoloye is the nearest rural locality.