Language situations vary in different nations. In some countries, a variety of languages are spoken; in others, a single language is used. People who have the linguistic competence to speak several languages are multilingual. What role does multilingualism play in multinational corporations? Is multilingualism a problem or a solution for international business? Does English as a lingua franca play a role in international business? How business leaders react to multilingualism or Englishization? Opinions are divided. Multilingualism has been the focus of interest in recent decades due to globalization, tourism, technology advancement, international trade, and so forth. Language barriers and linguistic diversity surfaced which may impact corporate communications in international business. Specific language policies might be needed for corporate communications. The aims of this chapter are to explore the roles of multilingualism and Englishization in international business, and to seek approaches for better corporate communications. Associated issues and problems as well as solutions and recommendations will be explored and discussed.