Abstract: This study aims to study the relationship between bank employee training and customers satisfaction in Libyan commercial banks. It adopts a quantitative approach, using questionnaires to collect the required data from two groups: Bank Employees and Customers. The findings of this study provide that there is a positive direct relationship between the component of training and development of service providers in the Libyan commercial banks as one of the internal marketing components (the independent variable) and customer satisfaction in those banks. The results showed that banks do not give much attention to training and development programs for banking service providers that are commensurate with work requirements and skills acquisition. Finally, the results of the study reveal that training courses in banks are unfairly distributed in selecting and nominating employees.