Lysychansk, is a city in Sievierodonetsk Raion, Luhansk Oblast, eastern Ukraine. It is located on the high right bank of the Donets River, approximately 115 kilometres (71 mi) from the administrative center of the oblast, Luhansk. It faces Sievierodonetsk across the river. Its population before the Russian invasion of Ukraine was approximately 93,340.

Luhansk Oblast, also referred to as Luhanshchyna (Луганщина), is the easternmost oblast (province) of Ukraine. Its administrative center is the city of Luhansk. The oblast was established in 1938 and bore the name Voroshilovgrad Oblast until 1958 and again from 1970 to 1991. It has a population of 2,102,921.