For around two and a half decades since Perry and Wise coined the term in 1990, research on Public Service Motivation (PSM) has achieved significant attention from scholars around the globe. Many notable journals in the field of Public Administration and Personnel Management have frequently published articles on the topic under discussion. This area of study has now become a multidisciplinary and multi-sectoral concept. There have been a few systematic literature reviews (both conceptual/narrative and meta-analysis) on the topic but all of them have had a varied but limited scope such as exploring the research trend, identifying gaps, and the relationship of Public Service Motivation and Job Satisfaction. This review contributes to the existing literature on PSM by reviewing 106 publications from 2007 till 2016, selected on the basis of predefined search protocols of the researchers. Public Service Motivation deals with motives that influence an individual to join some aspect of public service where an individual’s goals and public service goals are aligned. This Systematic Literature Review (SLR) focuses on several items: research strategies, research designs, publishing journals and sectors in which these studies have been conducted. It also identifies the ways in which PSM has been measured its dimensions. Factors affecting an individual’s PSM and the outcomes of PSM have also been identified and collated. Lastly, an attempt has been made to consolidate identified factors that affect PSM into a three-level framework i.e. Individual, Organizational and Societal. This narrative systematic literature review primarily aims to summarize the findings of the reviewed literature into a model that can be empirically tested. It also seeks to give researchers a comprehensive and multidimensional view of Public Service Motivation by collating and analyzing existing research on the topic.