The Crimean Mountains or Yayla Mountains /jaɪːlə/, /jeɪːlæ/ are a range of mountains running parallel to the south-eastern coast of Crimea, between about 8–13 kilometers from the sea. Toward the west, the mountains drop steeply to the Black Sea, and to the east, they change slowly into a steppe landscape.

Crimea is a peninsula in Eastern Europe, on the northern coast of the Black Sea, almost entirely surrounded by the Black Sea and the smaller Sea of Azov. The Isthmus of Perekop connects the peninsula to Kherson Oblast in mainland Ukraine. To the east, the Crimean Bridge, constructed in 2018, spans the Strait of Kerch, linking the peninsula with Krasnodar Krai in Russia. The Arabat Spit, located to the northeast, is a narrow strip of land that separates the Syvash lagoons from the Sea of Azov. Across the Black Sea to the west lies Romania and to the south is Turkey. The largest city is Sevastopol. The region has a population of 2.4 million, and has been under Russian occupation since 2014.