MCNP
| Acronym | Definition |
|---|---|
| MCNP | Mammoth Cave National Park (Kentucky) |
| MCNP | Monte Carlo N-Particle |
| MCNP | Monte Carlo Neutron and Photon (transport code) |
| MCNP | Massachusetts Coalition of Nurse Practitioners |
| MCNP | Monitoring Completed Navigation Projects |
| MCNP | Mt. Cook National Park (New Zealand) |