| Term | Full Form | Category |
|---|---|---|
| GCMN | Geboortezorg Consortium Midden Nederland | Others |
| GCMN | Giant congenital melanocytic naevi | Others |
| GCMN | Giant Congenital Melanocytic Nevi | Others |
| GCMN | Giant Congenital Melanocytic Nevus | Others |
| GCMN | Global Club Music Network | Others |
| GCMN | Great Commission Movement of Nigeria | Others |
| GCMN | Gulf Coast Master Naturalists | Others |