| Acronym | Definition |
|---|
| GCRO➣Gauteng City-Region Observatory (South Africa) |
| GCRO➣Greater Cedar Rapids Open (Marion, IA) |
| GCRO➣General Council and Register of Osteopaths (est. 1936; UK) |
| GCRO➣Gulf Coast Recovery Office (US DHS) |
| GCRO➣Generalized Conjugate Residual Method with Inner Orthogonalization (mathematics) |
| GCRO➣Guilford Council of Religious Organizations |