MNCN
| Acronym | Definition |
|---|---|
| MNCN | Minnesota Council of Nonprofits |
| MNCN | Museo Nacional Ciencias Naturales (Spanish: National Museum of Natural Sciences) |
| MNCN | Mastino Napoletano Club Nederland (Dutch: Neapolitan Mastiff Club Netherlands; breed club; est. 1985) |
| MNCN | MILSTAR (Military Strategic and Tactical Relay) NCA (National Command Authority) Conferencing Network (Ballistic Missile Defense System) |