Standard research on social media and its applications has been widely disseminated in developed nations. But in Sri Lanka, research in this area has been released far less frequently. However, social media usage in the country is evolving regardless of age, sex, education level, or other limitations. This study aims to fill the gap by conducting a comprehensive review of social media-based research conducted in Sri Lanka between 2012 and 2022. A systematic search of reputable databases, including IEEE Xplore, ScienceDirect, Emerald Insight, Google Scholar, and Springer Link, identified 57 relevant papers for analysis. The review highlights the diversity of application areas where social media research has been employed in Sri Lanka, including disaster management, public health, marketing, education, and more. Additionally, the analysis highlights the methodological approaches employed in social media analytics and the specific social media platforms utilized by researchers in Sri Lanka. The results of the current study serve as a timely resource, enabling policymakers and decision-makers to identify the potential avenues of social media research in Sri Lanka. By understanding the existing trends and implications, stakeholders can harness the power of social media data to make informed policy decisions, develop effective marketing strategies, enhance public health initiatives, and revolutionize educational practices.