The study of Maritime Security should not be limited to State/Military issues alone. It should be understood more broadly as including Non-State/Non-Military, Non-Traditional Maritime Securi-ty issues as well. This edited book explores Non-Traditional Maritime Security issues such as Sri Lanka’s Marine Environment, Illegal Fishing in South Asia, and Illegal Seaborne Migration from South Asia to Australia within a Comprehensive Maritime Security approach. Several chapters in this edited volume emphasize the links between Non-Traditional Maritime Security and National Interests and Security. The research in this volume point towards a need to understand Maritime Security comprehensively and holistically.