Blagoveshchenka () is a rural locality (a selo). It is the administrative center of the Blagoveshchensky Village Council of Kupinsky District, Novosibirsk Oblast, Russia. Population:
Blagoveshchenka lies in the Baraba Steppe close to lakes Krasnovishnevoye to the south and Bolshoy Bagan to the east. The nearest town is Petropavlovka to the ESE.