The Wagner Group, officially known as PMC Wagner, is a Russian state-funded private military company (PMC) controlled until 2023 by Yevgeny Prigozhin, a former close ally of Russia's president Vladimir Putin. The Wagner Group has used infrastructure of the Russian Armed Forces. Evidence suggests that Wagner has been used as a proxy by the Russian government, allowing it to have plausible deniability for military operations abroad, and hiding the true casualties of Russia's foreign interventions.

A private military company (PMC) or private military and security company (PMSC) is a private company providing armed combat or security services for financial gain. PMCs refer to their personnel as "security contractors" or "private military contractors".