The aim of this research is to comprehensively determine the monetary losses caused by mobbing and violence in the workplace in Poland, based on macroeconomic data for 2017 and own investigation. After determining the scale of mobbing and the effects of mobbing on the employees, the monetary value of losses generated at the individual, organizational and social level was determined. It was found that the value of these losses ranged from 2.07% to 4.59% of the total GDP of Poland. The biggest costs of mobbing were incurred by enterprises, and their share in total costs amounted over 77%
