Russky Island is the largest and northernmost island in the Eugénie Archipelago, a cluster of small islands and islets south of the Muravyov-Amursky Peninsula that extend to the southwest for about . Major neighboring islands in the archipelago include Shkot Island to the south, Popov Island ( long, wide), Reyneke Island ( across), and Rikord Island ( long and less than wide) to the south-west. There are many small islets and sea stacks scattered between them. Shkot Island is the only island in the archipelago connected to Russky Island by land, as a thin isthmus forms a land bridge during low tide.