Posted in Government & Military, Health & Medicine, Information Technology, Pop Culture DSED stands for Disinhibited Social Engagement Disorder (psychology) DSED stands for Département des Statistiques, des Études et de la Documentation (French: Department of Statistics, Studies and Documentation) DSED stands for Dakota Southeastern Division (National Model Railroad Association) DSED stands for Database for Sediment Early Diagenesis DSED stands for Diagnostic Survey for Eating Disorders DSED stands for Defense Sciences Engineering Division (Lawrence Livermore National Laboratory; US Department of Energy) DSED stands for Diplôme d’Etudes Superieures de Design (French: Higher Education Design Diploma) DSED