| maternal grandfather | bedstefar |
| maternal uncle | morbror |
| maternity | moderskab |
| Maternity benefit | Barselsorlov |
| Math rock | Math rock |
| Mathcad | MathCAD |
| mathematical analysis | matematisk analyse |
| Mathematical beauty | Matematisk skønhed |
| Mathematical constant | Matematisk konstant |
| mathematical method | matematisk metode |
| Mathematical proof | Bevis |
| Mathematical singularity | Singularitet |
| mathematics | matematik |
| Mathew Brady | Mathew Brady |
| Mathias Enard | Mathias Enard |
| Mathias Rust | Mathias Rust |
| Mathieu Ladagnous | Mathieu Ladagnous |
| Mathieu Orfila | Mathieu Orfila |
| Mathieu Perget | Mathieu Perget |
| Matilda | Matilda |
| Matilda Mk I | Matilda |
| Matilda tank | Matilda |
| Matisyahu | Matisyahu |
| Matlalcueitl | Matlacuéyetl |
| matrimony | ægteskab |
| Matrix | Matrix |
| Matrix isolation | Matrix |
| Matsumoto | Matsumoto |
| Matsumoto Castle | Matsumoto |
| Matsuo Bashō | Matsuo Basho |
| Matt Damon | Matt Damon |
| Matt Groening | Matt Groening |
| Matt Hardy | Matt Hardy |
| Matt Heafy | The Open Door |
| Matt LeBlanc | Matt LeBlanc |
| Matt Stone | Matt Stone |
| Matt White | Matthew White |
| matter | stof |
| Matterhorn | Matterhorn |
| Matthew | Mathias |
| Matthew Barney | Matthew Barney |
| Matthew Broderick | Matthew Broderick |
| Matthew Flinders | Matthew Flinders |
| Matthew McConaughey | Matthew McConaughey |
| Matthew Perry | Matthew Perry |
| Matthew the Evangelist | Matthæus |
| Matthias | Mathias |
| Matthias Corvinus of Hungary | Matthias |
| Matthiew | Mathias |
| Matti Vanhanen | Matti Vanhanen |
| Mattia Battistini | Mattia Battistini |
| mattress | madras |
| Matura | Studentereksamen |
| mature | moden |
| Maud | Maud af Norge |
