Workplace bullying and unethical behaviors are increasingly being recognized as serious problems that warrant attention. However, there is no previous research has investigated the possible effect of workplace bullying on employees unethical behaviors. So, this study is an attempt to fill this void. Moreover, we investigated whether this effect is mediated by psychological ownership. The model of this study was tested using survey data collected from a sample of 295 commercial bank employees. Results provided support for the proposed model, as workplace bullying predicted employees unethical behaviors and psychological ownership partially mediated the workplace bullying-unethical behaviors relationship. Recommendations and directions for future research are provided.