Orion Massif is a prominent massif located in Palmer Land, Antarctica. It is 14nmi long and consists of a complicated network of peaks, passes, ridges, and cirques. It is located 4nmi east-northeast of Scorpio Peaks, between the upper parts of Meiklejohn and Millett Glaciers, and 5nmi south of Goettel Escarpment. The highest peak is Mount Rigel.
It was named by the United Kingdom Antarctic Place-Names Committee in 1976 after the constellation of Orion.