Abstract: The success of an organization is dependent on its human resources. Employees’ training plays an important role as it enhances efficiency of an organization and helps employees to boost their performance and that of the organization. The purpose of this research was to investigate the impact of employees’ training and development (T&D) practices on organizational performance in Tanzania banking industry, a case of NBC bank in Mwanza city. It was further guided by four specific research objectives: (i) To identify how training needs analysis is conducted at NBC bank in Mwanza city, (ii) To determine the T&D practices and procedures at NBC bank in Mwanza city, (iii) To determine the T&D methods used on employees at NBC bank in Mwanza city, and (iv) To determine the effect of T&D programs towards employees’ and organizational performance at NBC bank in Mwanza city.