Severomorsk-3 () is a rural locality (an inhabited locality) in administrative jurisdiction of the closed administrative-territorial formation of Severomorsk in Murmansk Oblast, Russia, located on the Srednyaya River, southeast of Severomorsk proper. As of the 2010 Census, its population was 2,608.
Severomorsk-3 Air Base and ZEVS are located next to the settlement.
It was founded as a work settlement around 1951.