This review paper examines the communication barriers encountered in multinational energy projects, focusing on the challenges posed by cultural differences, language barriers, and differing regulatory environments. It synthesizes existing literature on communication strategies and their effectiveness in complex project environments, providing a comprehensive overview of how project managers can overcome these barriers. The paper discusses the role of cross-cultural training, language proficiency, and regulatory knowledge in improving communication and project outcomes. It also presents case studies from Asia and Africa to illustrate the application of these strategies in real-world scenarios. The review highlights the importance of cultural understanding, clear communication protocols, effective technology utilization, interpersonal relationship-building, and feedback mechanisms in overcoming communication barriers. Best practices and recommendations are provided to enhance communication effectiveness and promote project success in multinational energy projects. Addressing communication barriers is crucial for aligning stakeholders, managing risks, coordinating activities, and resolving conflicts, ultimately leading to improved project outcomes and stakeholder relationships.This review paper examines the communication barriers encountered in multinational energy projects, focusing on the challenges posed by cultural differences, language barriers, and differing regulatory environments. It synthesizes existing literature on communication strategies and their effectiveness in complex project environments, providing a comprehensive overview of how project managers can overcome these barriers. The paper discusses the role of cross-cultural training, language proficiency, and regulatory knowledge in improving communication and project outcomes. It also presents case studies from Asia and Africa to illustrate the application of these strategies in real-world scenarios. The review highlights the importance of cultural understanding, clear communication protocols, effective technology utilization, interpersonal relationship-building, and feedback mechanisms in overcoming communication barriers. Best practices and recommendations are provided to enhance communication effectiveness and promote project success in multinational energy projects. Addressing communication barriers is crucial for aligning stakeholders, managing risks, coordinating activities, and resolving conflicts, ultimately leading to improved project outcomes and stakeholder relationships.