| IMHA | Ilderton Minor Hockey Association 
| Others |
| IMHA | Illinois Manufactured Housing Association
| Others |
| IMHA | Immune Mediated Haemolytic Anaemia
| Others |
| IMHA | Immune Mediated Hemolytic Anemia
| Others |
| IMHA | Independent Medical Health Advocacy Service
| Others |
| IMHA | Independent mental health advocacy
| Others |
| IMHA | Independent Mental Health Advocate
| Others |
| IMHA | Indiana Manufactured Housing Association
| Others |
| IMHA | Institute of Musculoskeletal Health and Arthritis
| Others |
| IMHA | Intense Moose Heart Association
| Others |
| IMHA | International Maritime Health Association
| Others |
| IMHA | International Mental Health Association
| Others |
| IMHA | International Miniature Horse Association (Namibia)
| Others |
| IMHA | Iowa Manufactured Housing Association
| Others |