| Acronym | Sense | Language | Topics |
|---|---|---|---|
| TLL | Temasek Life Sciences Laboratory | In English | → Research institutes → Biological sciences → Biotechnology → Medicine |
| TLL | Télévision Locale Loire | In French | → Telecommunications |
| TLL | Thüringer Landesanstalt für Landwirtschaft | In German | → Agricultural sciences |
| TLL | Thesaurus Linguae Latinae | In Latin | → Encyclopaedias, reference works → Linguistics |