As a social being, individual has a need for its belonging. This causes the individual to be involved in different communities and groups, and try to make himself/herself accepted among these communities and groups throughout one's life. Therefore, social relations of individuals in their work life or at the companies where they work for being accepted by the groups and sub-groups in the company, not only reflects on the private life of individual, but also affects intergroup interaction and relations, individual performance of employees and organizational performance. Employees especially prefer staying silent when it is about participating in organizational decisions and exchange of ideas since they are concerned about being ignored by top management and his/her colleagues and being in the position of someone who complains all the time, and avoid informing others about negative situations within the organization. This issue is more important particularly for hotels carrying out business activities in service sector, in which becoming distinguished among others with different ideas and opinions is essential to achieve competitive advantage. According to the research which determines the employees’, who have been working in hotels, perception of organizational ostracism and determining the impact of their perception on the organizational silence and whistleblowing levels. For the survey researcher applied questionnaire technique as a method of data collection. According to the results of basic linear regression organizational ostracism effects organizational silence at the medium level (r=0,366) and also organizational ostracism effects whistleblowing at the medium level (r=0,569).