| Abbreviation | Definition |
|---|---|
| GCRA | Global Change Research Act |
| GCRA | Glueckstal Colonies Research Association |
| GCRA | Green Cities Research Alliance |
| GCRD | Generic Clinical Research Database |
| GCRF | GIST Cancer Research Fund |
| GCRF | Global Challenge Research Fund |
| GCRF | Global Challenges Research Fund |
| GCRG | Georgetown Community Research Group |
| GCRG | Global Change Research Group |
| GCRG | Green Catalysis Research Group |
| GCRI | Gujarat Cancer Research Institute |
| GCRL | Gulf Coast Research Laboratory |
| GCRN | Great Commission Research Network |
| GCRO | Graduate Clinical Research Organization |
| GCRT | Gender Centre for Research and Training |
| GCRT | Global Challenges Research Teams |
| GCSAR | General Commission for Scientific Agricultural Research |
| GCV | generalized cross validation |
| GDAR | Global Diet and Activity Research |
| GDNF | Glial cell line -Derived Neurotrophic Factor |