| Abbreviation | Definition |
|---|---|
| LIT | Lithuanian |
| LNC | Languedocien: A language of France |
| LOL | Mongo-Nkundu: A language of the Democratic Republic of the Congo |
| LOTE | Language Other Than English |
| LOZ | Lozi |
| LTU | Lithuania |
| LTZ | Letzeburgesch |
| LUB | Luba- Katanga |
| LUG | Ganda |
| LUI | Luiseno |
| LUN | Lunda |
| LUO | Luo ( Kenya and Tanzania) |
| LUO | Luo (Kenya and Tanzania) |
| MAC | Macedonian |
| MAD | Madurese |
| MAG | Magahi |
| MAH | Marshall |
| MAI | Maithili |
| MAK | Macedonian |
| MAK | Makasar |