Sustainable economic development is driven by sustainable entrepreneurial activities, generated by the personal attitudes of entrepreneurs. The present and future of sustainable entrepreneurship are shaped by the youth, including students, which is why it is important to understand their attitudes towards this type of entrepreneurship. Therefore, the key goal of the research is to evaluate the attitudes and behaviours of the youth towards sustainability issues and sustainable entrepreneurship. The current article reflects the results of the second research stage and aims at evaluating attitudes towards sustainable entrepreneurship among Latvian and Lithuanian students. The results reveal that gender/age affect personal environmental attitudes, however gender/age has no effect on personal willingness to start a sustainable business. The analysis results of the personal attitudes to sustainable entrepreneurship differ by age and gender. Gender has no effect and age strongly affects personal attitudes to sustainable development.