Djerassi Glacier is a 2.8 km long and 1 km wide steep valley glacier situated south of Gorichane Glacier, west of the head of Malpighi Glacier, northwest of the head of Mackenzie Glacier, and north-northeast of Pirogov Glacier on Brabant Island in the Palmer Archipelago, Antarctica. It drains the west slopes of Harvey Heights and the north slopes of Mount Parry, and flows northwestwards into Lanusse Bay north of Venchan Bluff.