| Name | Other Name | Family | Nativ Name | ISO6391 Code | ISO6392T Code | ISO6392B Code | ISO6393 Code | Notes |
|---|---|---|---|---|---|---|---|---|
| North Ndebele | Niger–Congo | isiNdebele | nd | nde | nde | nde | also known as Northern Ndebele | |
| South Ndebele | Niger–Congo | isiNdebele | nr | nbl | nbl | nbl | also known as Southern Ndebele | |
| Navajo | Navaho | Dené–Yeniseian | Diné bizaad | nv | nav | nav | nav | |
| Nauru | Austronesian | Dorerin Naoero | na | nau | nau | nau | also known as Nauruan | |
| Mongolian | Mongolic | Монгол хэл | mn | mon | mon | mon + 2 | macrolanguage | |
| Maltese | Afro-Asiatic | Malti | mt | mlt | mlt | mlt | ||
| Malagasy | Austronesian | fiteny malagasy | mg | mlg | mlg | mlg + 10 | macrolanguage | |
| Malay | Austronesian | Bahasa Melayu; بهاس ملايو | ms | msa | may | msa + 13 | macrolanguage; Standard Malay is [zsm]; Indonesian is [id/ind] | |
| Marathi | Indo-European | मराठी | mr | mar | mar | mar | also known as Marāṭhī | |
| Maori | Austronesian | te reo Māori | mi | mri | mao | mri | also known as Māori |