Yasnogorsk (Russian: Ясного́рск) is a town and the administrative center of Yasnogorsky District in Tula Oblast, Russia, located on the Vashana River (Oka's tributary), 35 kilometers (22 mi) north of Tula, the administrative center of the oblast.

Since 3 April 2009, the Head of the municipal formation "City of Yasnogorsk" has been Alexander Mikhailovich Dorogov.

[13] The position of Head of Administration of the municipal formation "City of Yasnogorsk" is occupied by Kharalampy Vasilyevich Mavrapulo (since 30 April 2009).

[14] The Yasnogorsk Machine-Building Factory builds parts for wagons, pumps, and locomotives for Russia's mining industry.

[15] The town lags behind other urban centers of the oblast both economically and socially and its population has been steadily declining.