| En Name: | Nikolsk |
| Ru Name: | Никольск |
| Coordinates: | 53.7167°N 50°W |
| Map Label Position: | left |
| Image Coa: | Coat of Arms of Nikolsk (Penza oblast).png |
| Federal Subject: | Penza Oblast |
| Adm District Jur: | Nikolsky District |
| Adm Selsoviet Jur: | Nikolsk |
| Adm Selsoviet Type: | Town of district significance |
| Adm Ctr Of1: | Nikolsky District |
| Adm Ctr Of2: | town of district significance of Nikolsk |
| Inhabloc Cat: | Town |
| Mun District Jur: | Nikolsky Municipal District |
| Urban Settlement Jur: | Nikolsk Urban Settlement |
| Mun Admctr Of1: | Nikolsky Municipal District |
| Mun Admctr Of2: | Nikolsk Urban Settlement |
| Pop 2010Census: | 22471 |
| Current Cat Date: | 1954 |
| Prev Name1: | Nikolo-Pestrovka |
| Postal Codes: | 442680–442683, 442699 |
Nikolsk (Russian: Нико́льск) is a town and the administrative center of Nikolsky District in Penza Oblast, Russia, located on the Vyrgan River 120km (80miles) northeast of Penza, the administrative center of the oblast. Population:
It was established in place of the villages of Nikolskoye (Russian: Нико́льское), known since 1668, and Pestrovka (Russian: Пестровка), known since the 1680s. It was called Nikolo-Pestrovka (Russian: Нико́ло-Пестровка) in 1761 and was granted urban-type settlement status in 1928. It was granted town status in 1954.
Within the framework of administrative divisions, Nikolsk serves as the administrative center of Nikolsky District.[1] As an administrative division, it is incorporated within Nikolsky District as the town of district significance of Nikolsk. As a municipal division, the town of district significance of Nikolsk is incorporated within Nikolsky Municipal District as Nikolsk Urban Settlement.[2]