Posted in Business & Finance, Information Technology, Organizations, Schools & Education, Science DREF stands for Disaster Relief Emergency Fund (International Red Cross/Red Crescent) DREF stands for Direction des Ressources Éducatives Françaises (French: French Learning Resources Branch; Canada) DREF stands for Distribution Research and Education Foundation DREF stands for Delta Research and Educational Foundation (Washington, DC) DREF stands for Dose-Rate Effectiveness Factor