威廉冰川是南极洲的冰川，位于帕默群岛的昂韦尔岛，最终在东南岸注入伯尔根湾，由比利时探险队发现，现时由南极条约体系管理。

William Glacier (64°43′S 63°27′W / 64.717°S 63.450°W / -64.717; -63.450) is a glacier flowing south from the interior highlands of Anvers Island to the head of Börgen Bay on the southeast coast of the island, in the Palmer Archipelago. Discovered by the Belgian Antarctic Expedition, 1897–99, under Gerlache, and charted by them simply as a "grand glacier." The name William Glacier first appears on a chart based upon a 1927 survey by DI personnel on the Discovery.