PRH
| Acronym | Definition |
|---|---|
| PRH | Patentti-ja Rekisterihallitus (Finnish: National Board of Patents and Registration) |
| PRH | Pacific Region Headquarters |
| PRH | Personality and Human Relationships |
| PRH | Prolactin-Releasing Hormone (also seen as PRLH) |
| PRH | Personnalité et Relations Humaines (Edmonton, Alberta, Canada) |
| PRH | People's Republic of Haven (Honor Harrington science fiction novels) |
| PRH | Primary and Rural Health (California) |
| PRH | Policy Rating History (insurance) |
| PRH | Phase Retrieval Holography |
| PRH | Purely Right-Handed (metamaterials) |