| Acronym | Definition |
|---|
| SIDC➣Solar Influences Data analysis Center (Royal Observatory of Belgium) |
| SIDC➣Subaru Impreza Drivers Club (UK) |
| SIDC➣Sunspot Index Data Center |
| SIDC➣Space Innovation and Development Center (US Air Force; formerly Space Warfare Center) |
| SIDC➣Subaru International Drivers Club (car club; UK) |
| SIDC➣Support Issues Development Committee |
| SIDC➣Supply Item Design Change |