The Luhansk People's Republic or Lugansk People's Republic is an internationally unrecognised republic of Russia in the occupied parts of eastern Ukraine's Luhansk Oblast, with its capital in Luhansk. The LPR was proclaimed by Russian-backed paramilitaries in 2014, and it initially operated as a breakaway state until it was annexed by Russia in 2022.

Russian separatist forces in Ukraine, primarily the People's Militias of the Donetsk People's Republic (DPR) and the Luhansk People's Republic (LPR), were pro-Russian paramilitaries in the Donbas region of eastern Ukraine. They were under the overall control of the Russian Federation, and were also referred to as Russian proxy forces. They were active during the war in Donbas (2014–2022), the first stage of the Russo-Ukrainian War. They then supported the Russian Armed Forces against the Ukrainian Armed Forces during the 2022 Russian invasion. In September 2022, Russia annexed the DPR and LPR, and began integrating the paramilitaries into its armed forces. They are designated as terrorist groups by the government of Ukraine.