The main purpose of this study is to identify the causes of whistleblowing acts in organizations. A model
has been developed based on the variables of machiavellianism and ethical environment, all of which are thought to affect whistleblowing intentions. Ethical violations observed in active business life and the behaviors shown towards these violations can be explained theoretically through personal differences of individuals. In this context, the effect of the machiavellian personality trait on intention to whistleblowing was examined under the moderator role of ethical climate. The study was conducted on health personnel working in Eskişehir. The population of the research consists of 5,986 people. Out of 1200 questionnaires distributed to related public institutions, 880 questionnares were returned. As a result, 290 questionnaires were excluded from the study due to incomplete data. The remaining 590 questionnaires were analyzed with SPSS 22, Amos 26 and Process 3.3. According to the findings of the ANOVA, correlation test, and hierarchical regression study, the machiavellian personality trait had a major impact on the intention to whistleblow within the framework of the research’s main issue. It has also been found that the effect of the machiavellian tendency on the intention of whistleblowing is moderated by the subdimensions of ethical climate which are ‘caring’, ‘law and codes’ and ‘independence’.