Despite deviant workplace behavior has increasingly become a serious problem in today’s organizations and has been reported to significantly affect on both individual and organizational effectiveness and performance, numerous organizations have ignored and not yet prepared to cope with this problem seriously. This present study aims at enhancing the body of knowledge in the area of workplace deviance by exploring the differences between employees and employers at a selected government bank in Thailand. A sample of 143 respondents was gathered for data collection through a modified version of deviant workplace behavior questionnaire. Results of independent samples t-test analysis indicated the significant difference in employees and employers with respect to deviant workplace behavior (t = -2.005, p = .047). These results suggested that employees were less likely to demonstrate deviant workplace behavior than employers. Discussion, limitations, and recommendations for further studies were also discussed.