This report reveals Senegal’s national-level priorities under the post-2015 agenda and includes an assessment of the adequacy of data available for measuring post-2015 progress. In consultation with national stakeholders, IPAR identified opportunities and challenges with regard to improving the quality, accessibility and transparency of data in Senegal. The report’s findings are based on several research activities including an inception workshop, face-to-face interviews, targeted focus group discussions with a diverse set of stakeholders endowed with specific competencies in goal areas examined under the Post- 2015 Data Test initiative and a validation workshop. The report provides a synthesis of the wide-ranging, rich interactions with stakeholders among which Senegal’s National Agency for Statistics and Demography (Agence Nationale de la Statistique et de la Démographie or ANSD) played a major role. A brief overview of Senegal’s experience with the MDGs and involvement in the post-2015 process, is provided in the remainder of this introduction and is followed by an overview of the research process. The report then presents the country’s priorities for post-2015 with a focus on relevant targets and indicators. For each goal area, the report outlines the current status, previous and ongoing efforts, national priorities, the data situation, and opportunities and challenges. Following this, the report examines the availability of good quality data for measuring post-2015 progress, with sources of data, data availability, data adequacy and areas where improvements are needed being the core issues. The political economy dimensions of the data revolution are then presented with the aim of shedding light on the main drivers of data gaps and improvements. The report also highlights issues related to data transparency and accountability and their links to funding sources and certain actors. A conclusion summarizes the main findings and proposes recommendations.