| ACAT | Accreditation Council for Accountancy and Taxation 
| Others |
| ACAT | Acquisition Category
| Others |
| ACAT | Acyl Cholesterol Acyl Transferase
| Others |
| ACAT | Acyl CoA: Cholesterol Acyltransferase
| Others |
| ACAT | Additional Cooperative Acceptance Testing
| Others |
| ACAT | Advanced Compartmental And Transit
| Others |
| ACAT | Advanced Crash Avoidance Technologies
| Others |
| ACAT | Advisory Committee on Accessible Transportation
| Others |
| ACAT | Advisory Committee on Automation in Transportation
| Others |
| ACAT | Aeromedical Evacuation Command Augmentation Team
| Others |
| ACAT | Aged Care Assessment Team
| Others |
| ACAT | Air-Conditioning Engineering Association of Thailand
| Others |
| ACAT | Aironet Configuration Administration Tool
| Others |
| ACAT | Airport Community Advisory Team
| Others |
| ACAT | Alaska Cat Adoption Team
| Others |
| ACAT | Alaska Center for Appropriate Technology
| Others |
| ACAT | Alaska Community Action on Toxics
| Others |
| ACAT | Alberta Council on Admissions and Transfer
| Others |
| ACAT | Albuquerque Cat Action Team
| Others |
| ACAT | Amateurs et Collectionneurs d'Automobiles de Touraine
| Others |
| ACAT | American Center for the Alexander Technique
| Others |
| ACAT | Applied Cognition And Technology
| Others |
| ACAT | Aqua City Actors Theatre
| Others |
| ACAT | Area Concentration Achievement Test
| Others |
| ACAT | Area Concentration Achievement Tests
| Others |
| ACAT | Asian Coalition Against Tobacco
| Others |
| ACAT | Assistive Context Aware Toolkit
| Others |
| ACAT | Assistive Context-Aware Toolkit
| Others |
| ACAT | Association of Church Accountants and Treasurers
| Others |
| ACAT | Atlanta Cask Ale Tasting
| Others |
| ACAT | Automated Client Account Transfer
| Others |
| ACAT | Automated Customer Account Transfer
| Others |
| ACAT | Automated Customer Account Transfers
| Others |
| ACAT | Automatic Collision Avoidance Technology
| Others |
| ACAT | Automatic Customer Account Transfer
| Others |