Luhansk (UK: / l uː ˈ h æ n s k /, US: /-ˈ h ɑː n-/; Ukrainian: Луганськ, IPA: [lʊˈɦɑnʲsʲk] ⓘ), also known as Lugansk (UK: /-ˈ ɡ æ n-/, US: /-ˈ ɡ ɑː n-/; Russian: Луганск, IPA: [lʊˈɡansk]), is a city in the Donbas in eastern Ukraine.As of 2022, the population was estimated to be 397,677 (2022 estimate), [1] making Luhansk the 12th-largest city in Ukraine.