| Acronym | Definition |
|---|
| GCIS➣Government Communication and Information System (South Africa) |
| GCIS➣Georgia Career Information System (Atlanta, GA) |
| GCIS➣Global Cluster Initiative Survey (economic policy research) |
| GCIS➣Grade Crossing Inventory System (railroad) |
| GCIS➣Global Customer Information System |
| GCIS➣Global Communications Information Solutions |