This research aims to examine empirically determinants on whistleblowing intentions that consist of organizational conditios (ethical climate: ethical climate-egoism, ethical climate-benevolence, ethical climate-principle), individual conditions (internal locus of control, organizational commitment, personal cost), and situational condition (seriousness of wrongdoing). The object of this research is regional office of Indonesian Ministry of Finance in Daerah Istimewa Yogyakarta. The subject of this research is civil servants who work at regional office of Indonesian Ministry of Finance in Daerah Istimewa Yogyakarta. This research uses primary data that collected by survey with instrument questionnaire. This research has sample 79 respondents which are taken using convenience method. The analysis tool applied is SPSS 22.00. Based on the analysis, the result shows that personal cost and seriousness of wrongdoing significantly influence whistleblowing intentions, while ethical climate-egoism, ethical climate-benevolence, ethical climate-principle, internal locus of control and organizational commitment are not significant.