| HSIP | Hartford Student Internship Program 
| Others |
| HSIP | Health Sciences Immunization Program
| Others |
| HSIP | Health Services Improvement Program
| Others |
| HSIP | Health Systems Integration Program
| Others |
| HSIP | Hierarchical Services of Interacting Processes
| Others |
| HSIP | High School Internship Program
| Others |
| HSIP | High Speed Internet Protocol
| Others |
| HSIP | Highway Safety Improvement Program
| Others |
| HSIP | Highway Safety Improvement Project
| Others |
| HSIP | Highways Safety Improvement Program
| Others |
| HSIP | Homeland Security Infrastructure Program
| Others |
| HSIP | HPSA Surgical Incentive Payment
| Others |
| HSIP | Human Subject Incentive Program
| Others |
| HSIP | Human Subject Incentives Program
| Others |
| HSIP | Human Subjects Incentives Program
| Others |
| HSIP | Human System Integration Plan
| Others |