The economic and security significance of maritime and political interests around the world has altered with the changing international security environment, as has the importance of secure sea routes to meet global demand. Oman increasingly relies on the sea for maritime trade and exploitation of marine resources, but without a common maritime policy and strategy to align its commercial and maritime interests, its offshore resources will remain under-developed. Oman’s primary interest is to ensure national maritime security by maintaining an effective navy and other agencies to guard its sea areas, and protect its maritime trade. However, it still lacks a formal maritime doctrine to underpin its policies This study argues that a maritime doctrine will assist Oman to utilise its maritime power and protect its national interests. In the absence of archive material, this study has drawn upon personal interviews with maritime experts and practitioners, and reviewed and analyzed a wide range of official publications and secondary sources on maritime policy and doctrine. It highlights the relationship between economic growth and maritime trade in Oman, examines the role of Oman’s shipping industry and related activities, and compares the experiences and expertise of several nations that have established maritime doctrine. Oman’s need for a maritime doctrine in order to protect its national interests and sovereignty is pressing. It should connect and coordinate its maritime power, military strategy, policies, and standing operating procedures through a single maritime doctrine that will provide the basis for mutual understanding between units of the Sultan’s Armed Forces, related government agencies, and national policy-makers, ensuring operational familiarity and efficiency. In proposing a discrete administrative body to oversee the codification of principles and procedures, the study fills a significant gap in Oman’s national maritime policy and strategy, since the expression of maritime doctrine will help protect the integrity and interests of the state and its people.