ABSTRAKThis research aims to find out how significant the mindset, leadership, and family values influence the organizational culture of family firms. This research is a quantitative research which uses questionnaires as the data collection method. The population of this research is the students of University of Ciputra who attend the Family Business class in the odd semester of 2016 Entrepreneurship subject. There are 59 respondents data which fit as samples of this research and the data is processed by using the Partial Least Square (PLS) analysis method. The result of this research shows that (1) mindset significantly affects leadership, (2) leadership does not significantly affect the organizational culture of family firms, (3) mindset significantly affects family values, (4) family values significantly affect the organizational culture of family firms, (5) family values do not significantly affect leadership, (6) mindset does not significantly affect the organizational culture of family firms, and (7) the organizational culture of family firms can be formed by the leaders mindset which are reflected through the family values believed and applied within the companies.