The research provides an in-depth exploration of the concept of regional competitiveness, highlighting its theoretical foundations, structural elements, and practical implications for coastal regions. Various scientific approaches to defining regional competitiveness are examined, including functional, resource-based, factor-oriented, balance-driven, innovation-centered, and institutional approaches. Through a semantic analysis, the study uncovers the dual nature of competitiveness-both as an internal potential and as the capacity to adapt to external conditions. The study proposes a detailed classification of regional competitiveness based on territorial, resource, specialisation, development level, source, and temporal criteria. This classification is aimed at clarifying how regions can differ in their competitive capacities and which elements may enhance their socio-economic development. Special attention is given to external factors influencing regional competitiveness. These include the effectiveness of public administration-measured through World Bank indices such as Voice and Accountability, Government Effectiveness, and Rule of Law-as well as broader institutional conditions, international economic integration, and innovation support. The structure of competitiveness in coastal regions is explored through the interaction of landscape characteristics, resource utilisation, and multi-level governance. Coastal regions are recognised for unique competitive advantages arising from their natural conditions (e.g., maritime resources, tourism potential, renewable energy) and institutional frameworks (e.g., public authorities, NGOs, local governance). Furthermore, the research emphasises the strategic integration of tourism into the system of regional competitiveness management. Tourism is not seen as a separate sector, but as a key structural driver that influences the broader development model of coastal regions. To this end, a tripartite model of regional competitiveness is developed, consisting of: provision subsystem (regulatory, investment, cultural, digital, and natural resource foundations), functioning subsystem (creation and monitoring of competitive advantages, sustainability), management subsystem (principles, structures, stakeholders, and competencies). The study concludes by advocating for a comprehensive management system that integrates environmental, systemic, functional, and institutional approaches. It underscores the importance of harmonising tourism development with socio-economic and ecological priorities to enhance the long-term competitiveness of coastal regions.