The bioeconomy analysis of microalgal products and processes, particularly within the framework of the blue economy, provides valuable insights into the transformative potential of microalgae technology. The blue economy emphasizes sustainable economic activities derived from the oceans, seas, and other aquatic environments, aiming to balance resource use with ecological preservation. Microalgae, with their remarkable versatility and high growth rates, offer a promising solution for integrating renewable biological resources into the bioeconomy. These organisms can address a wide range of challenges, including energy production, food security, human health, and environmental sustainability. From biofuels and biodegradable plastics to high-value nutraceuticals and pharmaceutical compounds, microalgae’s applications are diverse and multifaceted. Moreover, their capacity for bioremediation, carbon capture, and wastewater treatment highlights their role in mitigating environmental degradation and enhancing ecosystem health. The development of innovative cultivation techniques, coupled with advances in biotechnological processing, is expected to enhance the commercial viability of microalgae-based products significantly. These innovations will likely enable the scaling of microalgae applications, providing a robust foundation for sustainable industrial development. As such, microalgae technologies represent a key pillar in the global transition to a greener, more sustainable economy, positioning them as vital contributors to addressing contemporary global challenges such as climate change, resource depletion, and ecological degradation.