| IISM | Indian Institute of Skiing and Mountaineering 
| Others |
| IISM | Indian Institute of Surveying & Mapping
| Others |
| IISM | Institute of Information Systems and Management
| Others |
| IISM | Institute of Information Systems and Marketing
| Others |
| IISM | Inter-IISER (Indian Institutes of Science Education and Research) Sports Meet
| Others |
| IISM | International Indonesia Seafood Meat
| Others |
| IISM | International Institute of Sports Management
| Others |
| IISM | International Institute of Sustainability Management
| Others |