The main purpose of this study is to evaluate the impact of workplace bullying on job performance and to determine the significant attributes of workplace bullying. It is evident from the study that the workplace bullying has been considered a source of great concern for organizations. The workplace bullying became the potential hurdle in achieving this ideal condition for the organizations. Hence this study attempted to identify the attributes of workplace bullying that may significantly impact the job performance in private educational institutes of Karachi. This study intends to explore the causal relationship between workplace bullying and job performance, therefore this study is causal in its nature. The Faculty of privately owned and managed Higher Education Institutions (HEIs) in Karachi constitutes the subject on interest for this study. Results of the correlation for this study exhibited a significant negative relationship between the sarcasms being the attribute of workplace bullying and the job performance. Furthermore the results of correlation exhibited two attributes of workplace bullying namely Belittling, Name calling except the Sarcasm have negative insignificant correlation with the job performance of the faculty members of the privately owned higher educational institutions of Karachi.