The issues of maritime securities have become main concern to all coastal states worldwide including Indonesia. Unfortunately, various issues and problems on maritime securities in Indonesia which are related to stakeholders' views, understandings, perceptions, preparedness, mitigations, and gaps between institution are still matter. Instead, sectoral views are still very strong and causing authority disputes. In this respect, convergence views on maritime security issues and problems at both political, law makers, and technical operation levels are very important in order to overcome various number of maritime security threats faced by Indonesia. In this context, among other important aspects in maritime security, one have not to neglect on the role of geospatial information. This paper will address and discuss geospatial aspects in maritime security. The discussion will address geospatial data, information, methods, and technologies which are required to be well understood by all stakeholders in Indonesia's maritime security management.