This study was conducted to examine the influence of personality, organizational culture, and organizational commitment to the performance of the employee with organizational citizenship behavior as the intervening variable at KPP Pratama Lhokseumawe. The population used in this study was 83 respondents, while the sample of research as many as 79 respondents based on the questionnaires. The samples were taken using Census sampling technique. The hypothesis tests were conducted by using path analysis with the help of SPSS. The results of hypothesis tests indicated that personality, organizational culture, and organizational commitment have significant effects on organizational citizenship behavior. Organizational culture and organizational commitment have a significant effect on the performance of the employee, while personality had no significant effect on the performance of employees. The result of examination of mediation variable showed that organizational citizenship behavior could mediate the relationship between personality and organizational culture to partial employee performance. Whereas in organizational commitment, organizational citizenship behavior perfectly mediated the performance of employees.