There is a growing interest in marketing communications on social media and word of mouth. More and more companies operate in an international context. However, cross-cultural research on the relationship between marketing communications on social media and electronic word-of-mouth (eWOM) is very scarce. By filling the research gap, the purpose of this study is to assess the influence of marketing communications on Facebook on eWOM in different countries. The results of content analysis of 1,040 Facebook posts show that 27% of the variance of eWOM is explained by the geographic market. This study allows a deeper understanding of marketing communication processes in the virtual environment and provides concreto guidelines on content having a positive influence on eWOM.