| ISHM | Indian Society for History of Mathematics 
| Others |
| ISHM | Institute for Safety and Health Management
| Others |
| ISHM | Integrated System Health Management
| Others |
| ISHM | Integrated System Health Monitoring
| Others |
| ISHM | Integrated Systems Health Management
| Others |
| ISHM | International School of Hydrocarbon Measurement
| Others |
| ISHM | International School Of Hydrocarbon Measurements
| Others |
| ISHM | International Society for Hybrid Microelectronics
| Others |
| ISHM | International Society for the History of Medicine
| Others |
| ISHM | International Society for the History of the Map
| Others |
| ISHM | Iraq Security and Humanitarian Monitor
| Others |