| HPCA | Halton Peel Communications Association 
| Others |
| HPCA | Hawai'i Primary Care Association
| Others |
| HPCA | Hawaii Pest Control Association
| Others |
| HPCA | Hawaii Primary Care Association
| Others |
| HPCA | Health Practitioners Competence Assurance
| Others |
| HPCA | High Performance Computer Architecture
| Others |
| HPCA | High Performance Computing Act
| Others |
| HPCA | High Point Christian Academy
| Others |
| HPCA | High Point Christian Academy High Point
| Others |
| HPCA | Highland Park Club Apartments
| Others |
| HPCA | Highland Point Capital Advisors
| Others |
| HPCA | Himachal Pradesh Cricket Association
| Others |
| HPCA | Hunting Park Christian Academy
| Others |
| HPCA | International Symposium on High-Performance Computer Architecture
| Others |