The objective of this research is to understand the role of perceived organizational justice on the credibility of electronic word of mouth in brand communities. Based on a theoretical model built from the literature on the concepts of electronic word of mouth, organizational justice, and engagement in branded virtual communities, this research mobilizes a hypothetico-deductive empirical approach and structural equation methodology to evaluate the role of electronic word of mouth on consumer engagement, under the moderating influence of organizational justice. The results indicate positive effects of electronic word of mouth content and quality, and no effect of quantitative word of mouth. Furthermore, the moderating effect of perceived organizational justice on the influence of word of mouth is established. Therefore, it is recommended that managers of branded virtual communities take into consideration the credibility of the brand in its social engagements in order to benefit from a positive electronic word of mouth that can foster consumers’ online engagement.