| Name | Other Name | Family | Nativ Name | ISO6391 Code | ISO6392T Code | ISO6392B Code | ISO6393 Code | Notes |
|---|---|---|---|---|---|---|---|---|
| Malay | Austronesian | Bahasa Melayu; بهاس ملايو | ms | msa | may | msa + 13 | macrolanguage; Standard Malay is [zsm]; Indonesian is [id/ind] | |
| Malagasy | Austronesian | fiteny malagasy | mg | mlg | mlg | mlg + 10 | macrolanguage | |
| Macedonian | Indo-European | македонски јазик | mk | mkd | mac | mkd | ||
| Manx | Indo-European | Gaelg; Gailck | gv | glv | glv | glv | ||
| Latvian | Indo-European | latviešu valoda | lv | lav | lav | lav + 2 | macrolanguage | |
| Luba-Katanga | Niger–Congo | Kiluba | lu | lub | lub | lub | also known as Luba-Shaba | |
| Lithuanian | Indo-European | lietuvių kalba | lt | lit | lit | lit | ||
| Lao | Tai–Kadai | ພາສາລາວ | lo | lao | lao | lao | ||
| Lingala | Niger–Congo | Lingála | ln | lin | lin | lin | ||
| Maltese | Afro-Asiatic | Malti | mt | mlt | mlt | mlt |