威廉斯科斯比群岛是南极洲的群岛，位于威廉斯科斯比湾以东，主要岛屿有艾拉岛、希恩群岛等，大部分岛屿在1936年2月由英国探险队发现。

William Scoresby Archipelago is a group of islands which extends northward from the coast just east of William Scoresby Bay, Antarctica. The more important islands in the group are Bertha, Islay, Couling and Sheehan Islands. Most of the islands in this archipelago were discovered in February 1936 by Discovery Investigations personnel on the RSS William Scoresby. They named the group after their ship.