IntroductionSustainable entrepreneurship is increasingly relevant for addressing environmental and social challenges. This study analyzed sustainable entrepreneurial intention among university students in Chile by extending the theory of planned behavior (TPB) with education for sustainable entrepreneurship and altruism.MethodsThe study adopted a quantitative, explanatory, cross-sectional design. Data were collected through a non-probabilistic convenience sample of 850 undergraduate students from Universidad Católica del Norte, Chile. The proposed model was assessed using partial least squares structural equation modeling (PLS-SEM).ResultsThe results supported the role of curricular and institutional education for sustainable entrepreneurship and altruism in explaining students' sustainable entrepreneurial intention. Education-related variables and altruism contributed to students' attitudes toward sustainable entrepreneurship and perceived behavioral control, which in turn were associated with sustainable entrepreneurial intention.DiscussionExtending the TPB with education for sustainable entrepreneurship and altruism improves the understanding of sustainable entrepreneurial intention among Chilean university students. The findings highlight the relevance of university curricular and institutional initiatives, together with the development of altruistic values, for fostering sustainable entrepreneurship.