Sudak is a town, multiple former Eastern Orthodox bishopric and double Latin Catholic titular see. It is of regional significance in Crimea, a territory recognized by most countries as part of Ukraine but annexed by Russia as the Republic of Crimea. Sudak serves as the administrative center of Sudak Municipality, one of the regions Crimea is divided into. It is situated 57 km (35 mi) to the west of Feodosia and 104 km (65 mi) to the east of Simferopol, the republic's capital. Population: 16,492 .

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.