| ACPI | Academic Conferences and Publishing International 
| Others |
| ACPI | Accelerated Climate Prediction Initiative
| Others |
| ACPI | Addiction Connectome Preprocessed Initiative
| Others |
| ACPI | Advanced Component and Power Interface
| Others |
| ACPI | Advanced Configuration
| Others |
| ACPI | Advanced Configuration and Power Integration
| Others |
| ACPI | Advanced Configuration and Power Interface
| Others |
| ACPI | Advanced Configuration Power Interface
| Others |
| ACPI | Advanced Configuration Power Management Interface
| Others |
| ACPI | Advanced Control Power Interface
| Others |
| ACPI | All Chips Permanently Incinerated
| Others |
| ACPI | America's Cup Properties Inc
| Others |
| ACPI | American Crime Prevention Institute
| Others |
| ACPI | Anglican Church Planting Initiatives
| Others |
| ACPI | Animation Council of the Philippines, Inc
| Others |
| ACPI | Association canadienne des professeurs dimmersion
| Others |
| ACPI | Association Chamalieroise pour la Promotion de l'Informatique
| Others |
| ACPI | Association of Career Professionals International
| Others |
| ACPI | Association of Catholic Priests in Ireland
| Others |
| ACPI | Association of Christian Philosophers of India
| Others |
| ACPI | Audit Commission Performance Indicator
| Others |
| ACPI | Aviation Crime Prevention Institute
| Others |