| Acronym | Definition |
|---|
| LAN | Local Area Network |
| LAN | Lymphadenopathy |
| LAN | Local Access Network |
| LAN | Local Access Number |
| LAN | Lembaga Administrasi Negara (Indonesian state administration agency) |
| LAN | Líneas Aéreas Nacionales (Chile's national airline) |
| LAN | Laboratory for Advanced Networking (various schools) |
| LAN | Life Association News |
| LAN | Local Apparent Noon |
| LAN | Lansing, MI, USA - Capital City Airport (Airport Code) |
| LAN | Library Advocacy Now (Canada) |
| LAN | Literacy Access Network (Toronto, Canada) |
| LAN | Laboratory Automation News |
| LAN | Line Amplifier Node (Ciena) |
| LAN | Lansoprozole |
| LAN | Latin American Network Airlines (Chile) |
| LAN | Language Association of Nigeria |
| LAN | Learning Agency Network (Germany) |