The study examined the role of spatial technologies in fostering a sustainable blue economy across Africa. It synthesized current research and analyzed pertinent case studies, illuminating how tools such as Geographic Information Systems (GIS) and remote sensing were transforming marine resource management. The research indicated that these technologies facilitated precise monitoring of coastal ecosystems, enhanced fisheries management, and enabled effective marine spatial planning, thereby addressing pressing challenges like overfishing and climate change impacts. The study further explored innovative applications, including cloud-based geospatial processing and the integration of the Internet of Things (IoT), showcasing their potential to empower data-driven decision-making. Real-world examples from Ghana, Tanzania, South Africa, and Nigeria illustrated successful implementations, underscoring the importance of capacity-building and collaborative governance. Despite existing challenges, such as data access limitations and interoperability issues, the study highlighted future opportunities presented by advancements in artificial intelligence and enhanced sensor networks. Ultimately, the review emphasized the imperative of integrating spatial data into policy formulation to cultivate a resilient and inclusive blue economy, advocating for strategic investments and collaborative frameworks to bridge technological gaps and promote sustainable marine resource utilization throughout the African continent.