| ISMP | Indigenous Systems of Medicine Practitioners 
| Others |
| ISMP | Information Standards Management Panel
| Others |
| ISMP | Institute for Safe Medical Practices
| Others |
| ISMP | Institute for Safe Medication Practices
| Others |
| ISMP | Institute of Safe Medication Practice
| Others |
| ISMP | Integrated Safety Management Plan
| Others |
| ISMP | Integrated Source Management Portfolio
| Others |
| ISMP | Integrated Stormwater Management Plan
| Others |
| ISMP | Integrated System Management Processor
| Others |
| ISMP | Inter Switch Message Protocol
| Others |
| ISMP | International Society of Meeting Planners
| Others |
| ISMP | International Student Mentor Program
| Others |
| ISMP | International Student Mentoring Program
| Others |
| ISMP | International Symposium on Mathematical Programming
| Others |