- ADRU stands for Animal Disease Research Unit (USDA)
- ADRU stands for Alcohol and Drug Research Unit (Health Research Board; Ireland)
- ADRU stands for Active Duty Rehabilitation Unit (US VA; August, GA)
- ADRU stands for Ageing and Disability Research Unit (University of Nottingham; Nottingham, UK)
- ADRU stands for Alcohol and Drug Unit
- ADRU stands for Asian Disaster Response Unit (UN)
ADRU