Leadership is an important issue and choosing a leader with an appropriate leadership style is critical for any firm's success. Having an effective leader is of great importance for a firm to perform well. ill this study, we developed a leadership model for Lebanese hospitals. Top and middle managers participated in this study. All hospitals with more than 50 beds were chosen.Finally, 68 questionnaires were collected from all the 92 hospitals. Directive, supportive, participative and achievement-oriented were the measured leadership styles. The relationships between the five dimensions of personality, (i.e, extraversion, agreeableness, openness to experience, conscientiousness, and neuroticism) and four cultural dimensions mentioned by hosted, (i.e, individualism, masculinity, uncertainty avoidance and power distance) as well as such organizational factors as job structure, authority systems and team work were examined. The relationship of the subordinate factors as ability and work liking and four leadership styles was also tested. Finally, we developed a model that is appropriate for the internal factors in hospitals and consistent with personality of leaders and their cultural dimensions.