| HAARP | Hebrews Are Actually Reptilians Probably 
| Others |
| HAARP | Hf Active Auroral Research Program (Hf being "high frequency")
| Others |
| HAARP | High Altitude Aurora Research Project
| Others |
| HAARP | High Altitude Auroral Research Program
| Others |
| HAARP | High Altitude Auroral Research Project
| Others |
| HAARP | Highly Artistic Aural Recording Project
| Others |
| HAARP | HIV AIDS Asia Regional Program
| Others |