The purpose of this study is to determine the effect of Machiavellian personality traits on workplace disparity. It is believed that personality traits, which are known to have great influence and power on the quality and quality of the service in the banking sector, where labor is of great importance, have an impact on non-kindness at work. In this research, data collected from private and public bank employees operating in Kayseri and Eskişehir city centers were used. As a result of the research, a positive relationship was found between perception of Machiavelism and workplace disobedience. Among the sub-dimensions of the Machiavellian personality, there is a positive relationship between moral deprivation, desire for control and status, and workplace disobedience, while no relation is found between mistrust of others and workplace disobedience. According to the results of multiple regression analysis performed by the stepwise selection method, a significant and negative effect of the desire for control-status was found, while the distrust of others from the sub-dimensions of distrust has a significant and negative effect on the workplace disobedience. On the other hand, it has been determined that moral deprivation, which is one of the sub-dimensions of Machiavelism, does not have any effect on workplace courtesy.