| MNS | Maadi Narmer School 
| Others |
| MNS | Madras Naturalists Society
| Others |
| MNS | Maha Nalayak Sena
| Others |
| MNS | Maha Nuksan Sena
| Others |
| MNS | Maharashtra Navnirman Sena
| Others |
| MNS | Majority Node Set
| Others |
| MNS | Makes No Sense
| Others |
| MNS | Malaysian Nature Society
| Others |
| MNS | Managed Network Security
| Others |
| MNS | Managed Network Services
| Others |
| MNS | Managed Networks Software
| Others |
| MNS | Management Network Services
| Others |
| MNS | Marine Navigation System
| Others |
| MNS | Markham, Norton, Stroemer, & Company, Financial Management, LLC
| Others |
| MNS | Marshall Nappi and Schulz
| Others |
| MNS | Maryland Negotiation Service
| Others |
| MNS | Mass Notification System
| Others |
| MNS | Massachusetts Neuropsychological Society
| Others |
| MNS | Master Name Server
| Others |
| MNS | Master of Network Science
| Others |
| MNS | Mathematics and Natural Sciences
| Others |
| MNS | Mauritius Network Services
| Others |
| MNS | Maximum Nuksaan Sena
| Others |
| MNS | Media Network Services
| Others |
| MNS | Median Nerve Stimulation
| Others |
| MNS | Mediterranean Neuroscience Society
| Others |
| MNS | Melnick Needles syndrome
| Others |
| MNS | Mens' room
| Others |
| MNS | Menu Source
| Others |
| MNS | Mercy Nursing Services
| Others |
| MNS | Metabolic Nutrition System
| Others |
| MNS | Metal-Nitride Semiconductor
| Others |
| MNS | Metro Notification Services
| Others |
| MNS | Microsoft Netware Services
| Others |
| MNS | Mid Nebraska Speedway
| Others |
| MNS | Middlesex New Synagogue
| Others |
| MNS | Military Nursing Service
| Others |
| MNS | Mine Neutralization System
| Others |
| MNS | Minimal Node Size
| Others |
| MNS | Minimum Necessary Standard
| Others |
| MNS | Ministry of National Security
| Others |
| MNS | Minneapolis Northfield Southern
| Others |
| MNS | Minneapolis, Northfield and Southern Railway (Canadian Pacific Railway)
| Others |
| MNS | Minnesota South District of the Lutheran Church Missouri Synod
| Others |
| MNS | Miramar North School
| Others |
| MNS | Mirror Neuron System
| Others |
| MNS | Mission Need Statement
| Others |
| MNS | Mission Needs Statement
| Others |
| MNS | Mixed Neighbourhood Selection
| Others |
| MNS | Mobile Network Service
| Others |
| MNS | Mobile Newspaper Service
| Others |
| MNS | Mobility Networks and Systems
| Others |
| MNS | Modulare Niederspannungs Schalt
| Others |
| MNS | Most Notorious S***
| Others |
| MNS | Motor Neuron Syndrome
| Others |
| MNS | Mouth Not Shown
| Others |
| MNS | Muhammad Nawaz Sharif
| Others |
| MNS | Multi Navigation System
| Others |
| MNS | Multi-Navigator System
| Others |
| MNS | Multonian Navy Ship
| Others |
| MNS | Musculus Nutrix Societas
| Others |