Nyzhnohirskyi (; ) or Nizhnegorsky (), is an urban-type settlement in the Autonomous Republic of Crimea, a territory recognized by a majority of countries as part of Ukraine and occupied by Russia as the Republic of Crimea. The town also serves as the administrative center of the Nyzhnohirskyi Raion (district), housing the district's local administration buildings.
As of the 2001 Ukrainian Census, its population was 10,534. Current population:
The settlement was known by its Crimean Tatar name Seyitler (; ) until 1944.
Russia captured Nyzhnohirskyi on March 3, 2014, during its invasion of Crimea starting from 27 February.