| Abbreviation | Definition |
|---|---|
| NMPD | New Mombasa Police Department |
| NMPD | North Miami Police Department |
| NMSP | New Mexico State Police |
| NOCB | Narcotics and Organized Crime Bureau |
| NOPD | New Orleans police |
| NOPD | New Orleans Police Department |
| NOPD | New Orleans Police Detective |
| NoseCandy | Cocaine |
| NPA | National Police Academy |
| NPA | Nigeria Police Academy |
| NPAP | National Police Accountability Project |
| NPAS | National Police Air Service |
| NPB | National Police Bureau |
| NPCA | National Police Canine Association |
| NPCC | National Police Cadet Corps |
| NPCC | National Police Catch Chockroach |
| NPCC | National Police Chiefs Council |
| NPCC | National Police Command Center |
| NPCC | National Police Coordination Center |
| NPCO | Neighbourhood Police Centre Officers |