- ACDE stands for American Council for Drug Education
- ACDE stands for Asociación Cristiana de Dirigentes de Empresa (Spanish: Christian Association of Business Executives; various locations)
- ACDE stands for Association of Commercial Diving Educators
- ACDE stands for Association of Canadian Deans of Education
- ACDE stands for Aircrew Chemical Defense Ensemble
- ACDE stands for Ada Component Design Environment
- ACDE stands for Association Camerounaise pour les Droits de l’Enfant (French: Cameroon Association for the Rights of Children)
ACDE