| muñón | stomp |
| Muón | Muon |
| MVP | NBA Most Valuable Player Award |
| MVP de las Finales de la NBA | NBA Finals Most Valuable Player Award |
| MVS | Multiple Virtual Storage |
| Mwai Kibaki | Mwai Kibaki |
| MX | MX-record |
| Mxedruli | Georgisch alfabet |
| My Belarusy | My Bielarusy |
| My Chemical Romance | My Chemical Romance |
| My Dog Skip | My Dog Skip |
| My Fair Lady | My Fair Lady |
| My Heart Will Go On | My heart will go on |
| My Kind Of Christmas | Christina Aguilera |
| My Name Is Earl | My Name Is Earl |
| My Scene | My Scene |
| My Wife and Kids | My Wife and Kids |
| Mya | Mya |
| Myanmar | Myanmar |
| Mycobacterium | Mycobacterium |
| Mycobacterium leprae | Mycobacterium leprae |
| Mycobacterium tuberculosis | Mycobacterium tuberculosis |
| Mycoplasma pneumoniae | Mycoplasma pneumoniae |
| Mycosis | Mycose |
| Mycteria americana | Kaalkopooievaar |
| Myiopsitta monachus | Monniksparkiet |
| Mykolaiv | Mykolajiv |
| Mylène Farmer | Mylène Farmer |
| Mymoorapelta | Mymoorapelta |
| Myobatrachidae | Myobatrachidae |
| Myoictis | Gestreepte buidelmarters |
| Myoictis melas | Noordelijke gestreepte buidelmarter |
| Myoprocta acouchy | Rode acouchi |
| Myosotis ramosissima | Ruw vergeet-mij-nietje |
| Myotragus | Myotragus balearicus |
| Myrciaria cauliflora | Jaboticaba |
| Myriapoda | Duizendpotigen |
| Myricaceae | Gagelfamilie |
| Myricales | Myricales |
| Myristicaceae | Myristicaceae |
| Myrmecia | Buldogmier |
| Myrmecobiidae | Numbat |
| Myrmecobius fasciatus | Numbat |
| Myrmecophaga tridactyla | Reuzenmiereneter |
| Myrmecophagidae | Echte miereneters |
| Myrna Loy | Myrna Loy |
| Myron Scholes | Myron Scholes |
| Myroxylon | Myroxylon |
| Myrsinaceae | Myrsinaceae |
| Myrtaceae | Mirtefamilie |
| Myrtales | Myrtales |
| Myrtle la llorona | Jammerende Jenny |
| Mysore | Mysore |
| Mysterio | Mysterio |
| Mysterious Skin | Mysterious Skin |
| Mysteryland | Mystery Land |
| Mystic Pizza | Mystic Pizza |
| Mystic River | Mystic River |
| Mysticeti | Baleinwalvissen |
| Mystique | Mystique |
| Myton | Myton |
| Myung Jae Nam | Myung Jae-nam |
| Myvatn | Mývatn |
| Myxinoidea | Slijmprikken |
| Myxomycota | Slijmzwammen |
| Myxophaga | Myxophaga |
| Myxozoa | Myxozoa |
| Má vlast | Má Vlast |
| Mácula solar | Sunspot |
| Máfica | Mafisch |
| mágico | magisch |
| Mágreb | Maghreb |
| Máicol | Michel |
| Málaga | Málaga |
| Málaga Club de Fútbol | Málaga CF |
| máquina | machine |
| Máquina calculadora | Computers |
| máquina cinematográfica | filmprojector |
| máquina copiadora | kopieerapparaat |
| máquina cortadora de pelo | tondeuse |
| máquina de afeitar | scheerapparaat |
| máquina de café | koffiezetmachine |
| Máquina de Carnot | Carnotcyclus |
| máquina de cortar queso | kaasschaaf |
