Background: Nurses behavior is the conclusion of effective leadership, appropriate leadership styles as the transformational leadership styles create appropriate work environment, which affective positively on job satisfaction. Aim of the study: Investigate the effect of leadership styles on job satisfaction among nurses at a Military Hospital. Subjects and Methods; Study Design: A cross-sectional descriptive design was used. Setting: The study conducted at the Military hospital. Subjects: A purposive sample of (100) nurses at the Military hospital. Tools of data collection: Three tools were used in the present study; TooI I: Interview questionnaire sheet, Tool II: Multifactor Leadership Style Questionnaire and Tool III: Job Satisfaction Survey Questionnaire for Staff nurses. Results: The present study results revealed that 60% and 28% of the studied nurses had high transformational and transactional leadership respectively while only 12% of them had high laissez-faire leadership. 61% of the studied nurses were totally satisfied while 28% of them were totally ambivalence and 11% of them were totally unsatisfied. There is a highly significant statistically positive correlation
between the studied nurses` total transformational leadership style and their total job satisfaction, promotion, supervision and communication satisfaction at (p<0.01). Conclusion: There was a positive statistically significant correlation between total of job satisfaction and transformational leadership style among the studied nurses. Recommendations: Training program is recommended for staff nurses to increase their awareness and conducting further
similar studies on large sample.