| Acronym | Definition |
|---|
| SIAM | Society for Industrial and Applied Mathematics |
| SIAM | Society of Indian Automobile Manufacturers |
| SIAM | Series in Applied Mathematics |
| SIAM | Service Integration and Management |
| SIAM | Standard Information Appliance Module |
| SIAM | Structure Ignition Assessment Model (firefighting) |
| SIAM | Streptokinase in Acute Myocardial Infarction (trial) |
| SIAM | Système Informationnel de l'Assurance Maladie |
| SIAM | Scanning Interferometric Apertureless Microscope |
| SIAM | Signal Information And Monitoring |
| SIAM | Situational Influence Assessment Model |
| SIAM | Space Impact Assessment Methodology |
| SIAM | Space & Information Analysis Model (Army) |
| SIAM | Simulated Ambient Noise Model |
| SIAM | Self-Initiated Antiaircraft Missile |
| SIAM | Standard Indirect Allowed Manhours |
| SIAM | Self Initiated Air-defense Missile |
| SIAM | Sexual Intercourse At Midnight |