- ACDO stands for Air Carrier District Office
- ACDO stands for Advanced Concept Demonstration Office
- ACDO stands for Assistant Community Development Officer (various locations)
- ACDO stands for Amplatz Canine Duct Occluder (veterinary science)
- ACDO stands for Assistant Command Duty Officer
- ACDO stands for Association of Container Depot Operators (Sri Lanka)
- ACDO stands for Afghan Community Development Organization
- ACDO stands for Assistant Career Day Officer
ACDO