Human capital is a key success factor in any organisation. Dissatisfied and unhappy staff may not perform maximally, and this could affect an organisation’s products and services. This study examined the extent to which leadership style, correlated with job satisfaction intention in private university libraries South-West, Nigeria.Survey research design was adopted. The population consisted of all the 361 library staff. Findings revealed that the level of job satisfaction of library staff was low, and that the most practice leadership style is autocratic. It also revealed a significant relationship between leadership style and job satisfaction (r = 0.028, p < 0.05); The study concluded that leadership style contributed significantly to the low level of job satisfaction. It is recommended that library management should be more democratic, payment of allowances should be put in place. This would increase the job satisfaction of the employees in private university libraries.