| N&M | Nerves and muscles 
| Others |
| N&M | Nordyke and Marmon
| Others |
| n.m. | Nocte maneque Night and morning
| Others |
| N/M | Never Mind
| Others |
| N/M | Nothing Much
| Others |
| NM | IEEE Robert N. Noyce Medal
| Others |
| NM | Named Monster
| Others |
| nm | Names
| Others |
| NM | Nano Mega
| Others |
| NM | Nano Modified
| Others |
| NM | NanoMeter
| Others |
| NM | Narcissist Mother
| Others |
| NM | National Master
| Others |
| NM | National Match
| Others |
| NM | Natural Motion
| Others |
| NM | Nautical Miles
| Others |
| NM | Near Mint
| Others |
| NM | Nearest Mean
| Others |
| NM | Negative Margin
| Others |
| NM | Negative Marker
| Others |
| NM | Negative Medium
| Others |
| NM | Negative Motivation
| Others |
| NM | Neighbourhood Management
| Others |
| NM | Nenad Milosevic
| Others |
| NM | Nerello Mascalese
| Others |
| NM | Net Manager
| Others |
| NM | Net Margin
| Others |
| NM | Net Meeting
| Others |
| NM | Network Marketing
| Others |
| NM | Network Module
| Others |
| NM | Networked Media
| Others |
| NM | NeuroMuscular
| Others |
| NM | Never Married
| Others |
| NM | Never Mine
| Others |
| NM | New Mapset
| Others |
| NM | New Material
| Others |
| NM | New Member
| Others |
| NM | New Messages
| Others |
| NM | New Mexico
| State |
| NM | New Model
| Others |
| NM | New Motorcycle
| Others |
| NM | News Manager
| Others |
| NM | Newsmage
| Others |
| NM | Newton Meter
| Others |
| Nm | Newton metre
| Others |
| NM | NightMare
| Others |
| NM | Nightmare! (Doom)
| Others |
| NM | Nipper Map
| Others |
| NM | Nivea Men
| Others |
| NM | No Management
| Others |
| NM | No Mark
| Others |
| NM | No Mass
| Others |
| NM | No Matter
| Others |
| NM | No Meaning
| Others |
| NM | No Meeting
| Others |
| NM | No Memory
| Others |
| NM | No Message
| Others |
| NM | No Monitor
| Others |
| NM | No More
| Others |
| NM | No Motion
| Others |
| NM | No Movie
| Others |
| NM | No Music
| Others |
| NM | Nodular Melanoma
| Others |
| NM | Noise Margin
| Others |
| NM | Non-Magnetic
| Others |
| NM | Non-Markovian
| Others |
| NM | Non-Mechanical
| Others |
| NM | Non-Metal
| Others |
| NM | Non-Metallic
| Others |
| NM | Non-Migrating
| Others |
| NM | Non-Moment
| Others |
| NM | Non-Monotonic
| Others |
| NM | Nonlinear Model
| Others |
| NM | Norges Mesterskap
| Others |
| NM | Normal Metal
| Others |
| NM | Normal Mode
| Others |
| NM | Normalized Minutes
| Others |
| NM | Northern Maple
| Others |
| NM | Northern Maples
| Others |
| NM | Northern Monopoly
| Others |
| NM | Not Marked
| Others |
| NM | Not Meaningful
| Others |
| NM | Not Measurable
| Others |
| NM | Not Measured
| Others |
| NM | Not Mentioned
| Others |
| NM | Not Mine
| Others |
| NM | Not Misclassified
| Others |
| NM | Not Modulated
| Others |
| NM | Not Much
| Others |
| NM | Notorious Monster
| Others |
| NM | Novice Middle
| Others |
| NM | Novo Mesto
| Others |
| NM | Nuclear Medicine
| Others |
| NM | Number Machine
| Others |
| NM | Number Metric
| Others |
| NM | Numquam Magnum
| Others |
| NM | Nurse Manager
| Others |
| NM | Nyakuza Metro
| Others |
| NM | Robert N. Noyce Medal
| Others |