Improvement of human resources will determine the progress of a nation because the government is concentrating its attention on the development of human resources. In accordance with Indonesian government regulations No. 37 of 2009 which states that the university as an educational institution has a very big role in the development of human resources and improving the competitiveness of the nation. Seeing such roles, each lecturer is required to always improve themselves and have high performance that can be seen from the perspective performance, both related to official duties (in role performance) which is a requirement of organizations and performance beyond the role (extra-role performance). Extra-role performance in this regard is the Organizational Citizenship Behavior is very important for the effectiveness of the organization. One factor that can form the OCB is personality. Individual personality is a predictor playing an important role for a lecturer. Employee commitment is the pride of the employees of the organization as well as the viscosity of the bond between employees and the organization believed to be able to increase the OCB. If employees feel proud of the organization, then the enthusiasm to do the job as well as assist other members will be better (Organ et al., 2006). A further factor which affects the OCB is the support organization. Each individual perceives that the work done is an investment that will give you time, energy, and effort to get what they want. Job satisfaction is one of the factors that can also effect OCB. Employees who feel satisfied in work will speak positively about the organization, helping colleagues, and seeking to achieve performance beyond the demands of organizations, and then a disgruntled employee will be more obedient to the task because they are eager to repeat the positive experiences. Based on the foregoing description, this study is to investigate the effect of personality, organizational commitment and job satisfaction on performance by using variable moderating effect organizational citizenship behavior.