Workplace deviance does tremendous harms to an organization. In order to create a positive sense of cooperation among employees, understanding the interactions among employees and the effects of the interactions has become very important. This study was aimed to explore the relationships among workplace friendship, job satisfaction, and workplace deviance. The cross-sectional research design was adopted. A total of 332 valid questionnaires were collected and tested for hierarchical regression analysis. The research results revealed that better workplace friendships and higher job satisfaction could reduce workplace deviance. Besides, workplace friendship would also influence workplace deviance through job satisfaction. Therefore, it was suggested that organizations should use positive friendships as a medium to create a better work environment and reduce the impact of workplace deviance.