This study conducts a systematic review of 98 peer-reviewed journal articles that empirically investigate the presence of the gender pay gap along with factors that espouse it in organizations. The purposes of this study are threefold. First, it aims to explore trends in recurring themes that surface as factors that engender the gender pay gap in the workforce. Second, based on identified themes, the review summarizes and compares the gender pay gap by sector. Finally, the study presents a discussion on how the public sector fairs out in closing the gender pay gap and factors that predict it.