Polyarny (Russian: Поля́рный) is a town and the administrative center of the closed administrative-territorial formation of Alexandrovsk in Murmansk Oblast, Russia, situated on the outermost western side of the Kola Bay.

[2] Other sources, however, state that the original name was Alexandrovsk-na-Murmane (Алекса́ндровск-на-Му́рмане), it was called so after Alexandra Fyodorovna, wife of Emperor Nicholas II, and did not become known as "Alexandrovsk" until later.

[17] On 16 October 1925, when the Murmansk Governorate Commission meeting initiated work on compiling lists of the urban and rural localities — Murmansk, Alexandrovsk, and Kola were categorized as urban; however, a recommendation was sent to the All-Russian Central Executive Committee (VTsIK) to demote the latter two to rural localities due to economic conditions, sparse population, low trade volume, lack of industrial enterprises, and "general regression".

[12] In 1934, the Murmansk Okrug Executive Committee unsuccessfully petitioned to grant town status to Polyarnoye and to rename it Krasnoflotsk.

As the first nuclear-powered submarines were delivered to the Northern Fleet at the end of the 1950s, the yard was modified for docking and repair of these vessels.

As Soviet (and now Russian) naval nuclear vessels are decommissioned, they are laid up at Polyarny to await defuelling and disposal.