| HLPP | High-Level Parallel Programming and Applications (workshop) | 高级并行编程与应用（研讨会） |
| HLPP | Hearing Loss Prevention Program (NIOSH) | 听力损失预防计划（NIOSH） |
| HLPP | Heavy Lightpath Protection Probability | 重型光路保护概率 |
| HLPP | Hospital Liability Protection Plan | 医院责任保障计划 |
| HLPP | Hearing Loss Prevention Program | 听力损失预防计划 |
| HLPP | Human Liver Proteome Project | 人类肝脏蛋白质组项目 |
| HLPP | Home Loan Protection Plan | 住房贷款保护计划 |