| Acronym | Definition |
|---|
| MPN | Master Promissory Note |
| MPN | Most Probable Number (microbiology method) |
| MPN | Medical Provider Network |
| MPN | Microsoft Partner Network (business community) |
| MPN | Mobil Producing Nigeria |
| MPN | Microsoft Passport Network |
| MPN | Multi Protocol Network |
| MPN | Minority Professional Network (Atlanta, GA) |
| MPN | Mennonite Publishing Network |
| MPN | Manufacturer's Part Number |
| MPN | Myeloproliferative Neoplasm |
| MPN | Molex Premise Network (various locations) |
| MPN | Military Personnel, Navy |
| MPN | Maximum Possible Number (EPA) |
| MPN | More Productive Now! (blog) |
| MPN | Managed Private Network |
| MPN | Missouri Political News |
| MPN | Mode Partition Noise |
| MPN | MSE Packet Network |
| MPN | Mobile Private Network |
| MPN | Mean Probable Number |
| MPN | Military Pay, Navy |
| MPN | Mature Professionals Network |
| MPN | Modulatory Proctolin Neuron |
| MPN | Management Professional Network (IEEE) |
| MPN | Modular Personal Network (Celume) |
| MPN | Mission Packet-Switch Network |
| MPN | Mobility Position Number |
| MPN | Message Packet Network |
| MPN | McCulloch-Pitts Neural Model |
| MPN | Messaging Pipeline Newsletter (web newsletter) |