This study investigated the impact of transformational leadership on organizational performance: A survey of all commercial banks in Yenagoa, Bayelsa State, Nigeria. The study employed simple random sampling technique to collect data with 300 questionnaires administered to staffs and 150 were returned. The study adopts spearman rank-order correlation coefficient statistical technique with the aid of SPSS IBM version 20 to examine the relationship the explanatory variable and predatory variable using 5% level of significance to test the hypotheses. The study reveals that there is a positive relationship between idealized influence, inspirational motivation, intellectual stimulation and individualized consideration of transformational leadership and organizational performance. Therefore, the study summarized that there is a positive link between transformational leadership and organizational performance. The research recommends that, managers should develop of specific, challenging and attractive vision that pay attention to self-efficacy; promote employees’ capabilities and capacities via training and coaching that will enhance the well-being of employees and increase productivity and commitment thereon.