| HOSA | Health Occupation Safety Assosiation Act 
| Others |
| HOSA | Health Occupation Services of America
| Others |
| HOSA | Health Occupation Student Association
| Others |
| HOSA | Health Occupation Students Of America
| Others |
| HOSA | Health Occupations Student Association
| Others |
| HOSA | Health Occupations Students of Ameria
| Others |
| HOSA | Health Occupations Students of America
| Others |
| HOSA | Hearing Office Systems Assistant
| Others |
| HOSA | Heath Occupations Students of America
| Others |
| HOSA | Hilliard Ohio Soccer Association
| Others |
| HOSA | Hot Olives Surprise Apples
| Others |
| HOSA | Hydroxylamine O Sulfonic Acid
| Others |
| HOSA | Workshop on Higher-Order Spectral Analysis
| Others |