This paper aims to explore the mediation effect of psychological capital and perceived organizational support on the relationship between authentic leadership and intention to stay. The structural equation modeling technique was used to test the hypothesized model. A survey was administered to collect data targeting a sample of randomly selected teachers working at high schools in Tehran. The results suggest that authentic leadership significantly influences teachers' intention to stay, psychological capital, perceived organizational support. As predicted, both perceived organizational support and psychological capital had a significant positive direct effect on intention to stay. The effect of authentic leadership on intention to stay was found to be mediated by teachers' psychological capital and perceived organizational support. This study shows how leaders can enhance teachers' intention to stay by applying authentic leadership, engendering psychological capital and creating supportive environment.