| HOPA | Helpful Office Personal Assistant
| Others |
| HOPA | Hematology Oncology Pharmacy Association
| Others |
| HOPA | Hematology/Oncology Pharmacy Association
| Others |
| HOPA | High Output Paraffin Actuator
| Others |
| HOPA | High Output Productive Assistant
| Others |
| HOPA | Higher Order Path Adaptation
| Others |
| HOPA | Higher-Order Path Adaptation
| Others |
| HOPA | Home Ownership Purchase Assistance
| Others |
| HOPA | Horizontal Open Probing Attachment
| Others |
| HOPA | Hot Of Piece A**
| Others |
| HOPA | House of Pure Aloha
| Others |
| HOPA | Housing for Older Persons Act
| Others |