GSIC
| Acronym | Definition |
|---|---|
| GSIC | Global Scientific Information and Computing Center (Tokyo Institute of Technology; Japan) |
| GSIC | Government of Singapore Investment Corporation |
| GSIC | Group Successive Interference Cancellation |
| GSIC | Grey Sisters of the Immaculate Conception (Pembroke, Ontario, Canada) |
| GSIC | Global Studies Integrated Curriculum (various schools) |
| GSIC | Gujarat Small Industries Corporation (est. 1962; India) |
| GSIC | Golden State Insulator Club (California) |