Mglinsky (masculine), Mglinskaya (feminine), or Mglinskoye (neuter) may refer to: Mglinsky District, a district of Bryansk Oblast, Russia Mglinsky Uyezd (1919–1920), an administrative division of Gomel Governorate in the early Russian SFSR Mglinsky Urban Administrative Okrug, an administrative division which the town of Mglin in Mglinsky District of Bryansk Oblast, Russia is incorporated as Mglinskoye Urban Settlement, a municipal formation which Mglinsky Urban Administrative Okrug in Mglinsky District of Bryansk Oblast, Russia is incorporated as