The primary objective of the study is to investigate the mediating role of authentic leadership between employee training and employee performance in Jeddah Islamic Port of Kingdom of Saudi Arabia based on the complementary congruity theory (CCT). The study is based on analyzing 212 respondents from Jeddah Islamic Port employees. The present study uses the smartPLS 3.2.8 statistical software to reach a positive and significant relationship between employee training, authentic leadership and employee performance. Furthermore, the study finds a mediating role of authentic leadership between the relationship of employee training and employee performance in Jeddah Islamic Port. The study also recommends that the port management should focus on employee training and authentic leadership practices to enhance the employee performance which lead to port performance. Moreover, the study suggests that future study should validate the current study framework in other countries especially in the context of government departments.