| Abbreviation | Definition |
|---|---|
| MLCT | Manchester Land Conservation Trust |
| MLCT | Massachusetts Land Conservation Trust |
| MMCT | Mulanje Mountain Conservation Trust |
| MNCR | Marine Nature Conservation Review |
| MPA | Marine Protected Area |
| MRCA | Mountains Recreation and Conservation Authority |
| MRCC | Montana Raptor Conservation Center |
| MRCD | Mission Resource Conservation District |
| MRCE | Moosehead Region Conservation Easement |
| MSCP | Multi Species Conservation Plan |
| MSCP | Multi Species Conservation Program |
| MSCP | Multiple Species Conservation Plan |
| MT | Money Talks |
| MTCC | Monroe Township Conservation Club |
| MUBC | Masters in Urban and Building Conservation |
| MUO | Make Use Of |
| MWCD | Montague Water Conservation District |
| MWCT | Maasai Wilderness Conservation Trust |
| NABCI | North America Bird Conservation Initiative |
| NACK | Nature And Conservation for Kids |