ACU
ACU is an abbreviation for:
- Achutupo Airport in Achutupo, Panama by the IATA code
- Address Control Unit , see address control unit
- American Conservative Union
- Armored Command Unit , see Supreme Commander # Armored Command Unit
- Army Combat Uniform , US Army combat uniform
- Asian Monetary Unit (Engl. Asian Currency Unit), a proposed common currency unit for the ten countries of ASEAN and also the People's Republic of China, Japan and South Korea
- Association of Commonwealth Universities
- Associazione Consumatori Utenti
- Australian Catholic University (ACU National), the only state Catholic university in Australia
- Auto-Cycle Union , the British motorcycling association
- Automatic calling unit , see automatic dialing device
