Slantsy (Russian: Сла́нцы "Oil shales") is a town and the administrative center of Slantsevsky District in Leningrad Oblast, Russia, located on the Plyussa River, 192 kilometers (119 mi) west of St. Petersburg.

The creation of the settlement was proposed in 1930 by Sergey Kirov, when a large oil shale deposit was discovered in the region.

On December 20, 1934, rural localities of Nikolskoye and Gavrilovskoye, then a part of Polsky Selsoviet of Gdovsky District of Leningrad Oblast, were merged to form the urban-type settlement of Slantsy.

Eesti Energia proposed transfer to cash based transaction was not acceptable for Russian side.

[10] The cooperation broke down in April 2005 due to dispute related to the payments from Leningradslanets to Narva Power Plants.

[1] As an administrative division, it is, together with eight rural localities, incorporated within Slantsevsky District as Slantsevskoye Settlement Municipal Formation.

The mines are now largely closed due to decrease in local demand and disagreements over contracts with nearby Estonia.

[16] Three of those commemorate events related to World War II, while the fourth one is the building of the first shale mine open in Slantsy.