Found 5 full forms for HHMM
| Term | Full Form | Category |
|---|---|---|
| HHMM | Haywards Heath Movie Makers 
| Others |
| HHMM | Healthcare Hazard Management Monitor
| Others |
| HHMM | Helping Hands Medical Missions
| Others |
| HHMM | Hierarchical Hidden Markov Model
| Others |
| HHMM | Hour Hour Minute Minute
| Others |