| Acronym | Definition |
|---|
| SISR | Single Image Super Resolution |
| SISR | Semantic Interpretation for Speech Recognition |
| SISR | Société Internationale de Sociologie des Religions (French: International Society for the Sociology of Religion) |
| SISR | Single Input Signature Register |
| SISR | Superannuation Industry Supervision Regulation (Australia) |
| SISR | San Isabel Scout Ranch (Colorado) |
| SISR | Swinburne Institute for Social Research (Melbourne, Victoria, Australia) |
| SISR | Speaker-Independent Speech Recognition System (software) |
| SISR | Selected Item Status Report |
| SISR | Society for Interdisciplinary Studies Review (Journal of the SIS) |
| SISR | Signals Intelligence Security Regulations |