威廉逊冰川是南极洲的冰川，位于威尔克斯地，发源自罗穹，最终注入科尔沃科雷塞斯湾，该冰川根据美国海军的空中照片被发现。

Williamson Glacier (66°40′S 114°6′E / 66.667°S 114.100°E / -66.667; 114.100) is a glacier draining northeastward from Law Dome into Colvocoresses Bay. Delineated by G.D. Blodgett (1955) from air photos taken by U.S. Navy Operation Highjump (1946–47). Named by Advisory Committee on Antarctic Names (US-ACAN) after John G. Williamson, crew member on the sloop Vincennes of the United States Exploring Expedition (1838–42) under Lieutenant Charles Wilkes.