| Gerehu | |
| Pushpin Map: | Papua New Guinea |
| Coordinates: | -9.3881°N 147.1439°W |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location within Papua New Guinea |
| Subdivision Type: | Country |
| Subdivision Name: | Papua New Guinea |
| Subdivision Type1: | Province |
| Subdivision Name1: | NCD |
| Subdivision Type2: | City |
| Subdivision Name2: | Port Moresby |
| Population Density Km2: | auto |
| Demographics1 Title1: | Main languages |
| Postal Code Type: | Postcode |
| Postal Code: | 136 |
| Timezone1: | AEST |
| Utc Offset1: | +10 |
Gerehu is a large residential suburb to the north of Port Moresby, the capital city of Papua New Guinea.
The suburb is divided into stages from 1 to 7 and is home to approximately 50,000 of Port Moresby's residents.
It is in the city's North West electorate and is like a small township of its own with basic amenities such as schools, markets, a police station, churches, a hospital and recreational parks.