HRP
- HRP Rescuer
- Halifax Regional Police
- Happiness Realization Party
- Haptoglobin-related protein
- Hard Rock Park
- Haryana Republican Party
- Haute Randonnée Pyrénéenne
- Hawaii Republican Party
- Hierarchical Risk Parity
- Historic Royal Palaces
- Horseradish peroxidase
- Human Research Program
- Human Rights Party (disambiguation)
- Human remains pouch
- Human resource planning
- Humanoid Robotics Project
- Hutchinson River Parkway
- Rockwell scale
- Special Programme on Human Reproduction
- The Harvard Review of Philosophy
- Ultra-Wideband
- Yandruwandha language