The Radnarian Isles are five islands lying off the southwest coast of Worfin Island. They are named after Radnar, a human adventurer who claimed them and attempted to establish a human kingdom there which he also named after himself as the Kingdom of Radnaria.

The largest of the islands is named Kingsland Island. The farthest out to sea is named Seaward Island. The island between those two is named Rat Island. The other two islands are as yet unnamed.