This article examines the role of student activism in enhancing or weakening democratization in authoritarian contexts, focusing on the case of the Islamic Republic of Iran. It contends that while numerous studies indicate that student activism has been crucial in processes of regime change, insufficient attention has been paid to the circumstances under which it contributes to strengthening authoritarian rule. The case of Iran demonstrates that there are two different ways in which this occurs. First, much like many other civil society actors, student activism can be co-opted and at times willingly so because of a coincidence of material and/or ideological interests. Second, even when student activism genuinely pushes for democratization and becomes independent and autonomous from political power, the authoritarian constraints in place can contribute to marginalize it and defeat it. The Iranian case highlights the problems student activism faces when it attempts to disengage from the dominant structures of authoritarian politics, and in line with Jamal's findings, demonstrates how authoritarian structural constraints can undermine the democratic aspirations of well-organised groups.