OICC Press International Journal of Agricultural Management and Development 2159-5860 11 4 2021 09 01 The Effect of Sustainability Orientation and Prior Sustainability Knowledge on Agriculture Students’ Sustainable Entrepreneurial Intentions 395 412 EN Saeid Karimi Associate Professor, Department of Agricultural Education and Extension, Faculty of Agriculture, Bu‑Ali Sina University, Hamedan,Iran Fatemeh Sepahvand PhD Student, Department of Agricultural Extension and Education, Bu‑Ali Sina University, Hamedan, Iran Journal Article 2021 09 01 The purpose of the present study was to examine an extended theory of planned behaviour (TPB) model within the domain of sustainable entrepreneurship and identified the most important factors impacting on sustainable entrepreneurial intentions insustainable entrepreneurship. In particular, the study aimed to extend the TPB model to include sustainability orientation andprior sustainability knowledge. Data were collected from 211 Iranian agriculture students. The results of structural equation modelling showed that sustainable entrepreneurial intentions were determined by attitudes toward sustainable entrepreneurship and perceived behavioural control (PBC) but not subjective norms. The analysis also revealed that sustainability orientation and prior sustainability knowledge influenced sustainable entrepreneurial intentions indirectly through their effects on attitudes toward sustainable entrepreneurship and PBC. As apractical implication, educators who want to stimulate thecreation of new sustainable businesses could consider the pivotal role not only of attitudes toward sustainable entrepreneurship and PBC but also of sustainability orientation and prior sustainability knowledge.