Leo Victor Panitch FRSC (3 May 1945 – 19 December 2020) was a distinguished research professor of political science and a Canada Research Chair in comparative political economy at York University. From 1985 until the 2021 edition, he served as co-editor of the Socialist Register, which describes itself as "an annual survey of movements and ideas from the standpoint of the independent new left". Panitch himself saw the Register as playing a major role in developing Marxism's conceptual framework for advancing a democratic, co-operative and egalitarian socialist alternative to capitalist competition, exploitation, and insecurity.