Based on the experiences of 15 Latina/o undocumented parents, this qualitative study identifies three distinct ways Latina/o immigrant parents understand their role in their children's post-secondary aspirations: "confident partners," "motivational supporters," and "uncertain spectators." By comparing and contrasting these and their corresponding supportive behaviors, I argue that parents' sense of self-efficacy is a determinant factor of their engagement in their children's post-secondary planning. Thus, to best support Latina/o immigrant parents support their children in their post-secondary aspirations, it is essential that secondary schools understand the underlying mechanisms that lead parents to have different understandings of their roles in this process.