| Acronym | Definition |
|---|
| TLN | Telelatino (Canada) |
| TLN | The Library Network (various locations) |
| TLN | Teaching and Learning Network (various locations) |
| TLN | Therapeutic Landscapes Network (Beacon, NY) |
| TLN | Talin |
| TLN | Technology Leadership Network (various organizations) |
| TLN | Translator's Note |
| TLN | Trunk Line Network |
| TLN | The Lakers Nation (basketball fan website) |
| TLN | Thinkfinity Literacy Network (now ProLiteracy Education Network and Wonderopolis) |
| TLN | Too Late Now |
| TLN | Transformer Location Number (utilities) |
| TLN | Trunk Link Network |
| TLN | Total Logistics Network |
| TLN | Title plus Last Name |
| TLN | Traitement des Langues Naturelles (French: Natural Language Processing; computer science) |
| TLN | Telephone Line Number |
| TLN | Training Line Number (US Air Force Training Management System) |
| TLN | The Loneliest Number |
| TLN | Taillieu Logistique Nord (French logistics company) |
| TLN | TTWCS / LAM FCS / NFCS (Tactical Tomahawk Weapons Control System / Land Attack Missile Fire Control System / Naval Fire Control System) |