The Shelonsky Islands (Russian: Шелонские острова, Shelonskiye Ostrova) is an island group in the Sakha Republic (Yakutia), Russian Federation.

They are located in the Laptev Sea and are subject to severe Arctic weather with frequent gales and blizzards.

The Shelonsky Islands are part of the coastal lowlands of the Yana Bay, east of the mouths of the Chondon river and west of Sellyakh Bay.

The coastal area off which these islands lie, is an extensive wetland zone.

[1] Further north, the sea in the Yana Bay is frozen with thick ice for about eight months yearly, so that these coastal islands are merged with the mainland most of the year.