Posted in Government & Military, Information Technology, Schools & Education, Science DNSI stands for Direction Nationale de la Statistique et de l’Informatique (French: National Directorate of Statistics and Informatics; Mali) DNSI stands for Direct-Normal Solar Irradiance (solar energy) DNSI stands for Discrimination and National Security Initiative (Pluralism Project; Harvard University; Cambridge, MA) DNSI stands for Defense Nuclear Surety Inspection