Proletariy (Russian: Пролета́рий) is an urban locality (an urban-type settlement) in Novgorodsky District of Novgorod Oblast, Russia, located at the Nisha River close to its mouth, 30 kilometers (19 mi) east of Veliky Novgorod.

In 1835, a windmill was built here by the engineer and landowner Kazimir Raykhel (Casimir Reichel).

[2] Effective October 1, 1927, Bronnitsky District with the administrative center in the selo of Bronnitsa was established as a part of Novgorod Okrug of Leningrad Oblast.

On July 5, 1944, Mstinsky District was transferred to newly established Novgorod Oblast.

Proletariy contains three objects classified as cultural and historical heritage of local significance.