North Ossetia Nature Reserve () (also Severo-Osetinsky) is a Russian 'zapovednik' (strict nature reserve) in the high mountains on the northern slope of the Caucasus Mountains with the heights ranging from 650 meters - 4,249 meters. There are 76 glaciers in the reserve with a total area of . The site is centered on the Ardon River valley, in the Alagirsky District of North Ossetia-Alania. It was formally created in 1967, and covers a total area of .