The aim of this study is to empirically investigate the effect of organizational silence dimensions on organizational citizenship behaviours. This study considers organizational silence as a multidimensional construct and compares the effects of these dimensions on organizational citizenship behaviours. The research sample formed by 462 full time employees of one multinational private company which is headquartered in Istanbul. The data was provided by a questionnaire which was structured according to the research questions. Regression was performed to test our hypothesized model. On the basis of using regression, we found that: i) acquiescent silence and defensive silence have a negative effect on organizational citizenship behavior, ii) prosocial silence has a positive effect on organizational citizenship behavior. (C) 2015 The Authors. Published by Elsevier Ltd.