| Acronym | Definition |
|---|
| PLN | Programación Neurolinguística (Spanish: Neuro Linguistic Programming) |
| PLN | Plan |
| PLN | Plain |
| PLN | Peer Learning Network (various locations) |
| PLN | Perusahaan Listrik Negara (state electric company of Indonesia) |
| PLN | Prison Legal News |
| PLN | Power Line Networking (telecommunications) |
| PLN | Professional Landcare Network |
| PLN | Partido Liberación Nacional (Spanish: National Liberation Party) |
| PLN | Palmerston North |
| PLN | Pump Line Nozzle |
| PLN | Platoon |
| PLN | Port Letter and Number (UK boat registration) |
| PLN | Protein-Losing Nephropathy |
| PLN | Private Line Network |
| PLN | Pangea Logistics Network (shipping) |
| PLN | Photoluminescent Nanofiber |
| PLN | Pelvic Lymph Nodes |
| PLN | Pellston, MI, USA - Pellston Regional Airport (Airport Code) |
| PLN | Poder Legislativo Nacional (Spanish, Argentina) |
| PLN | Personal/Professional Learning Network |
| PLN | Polish Zloty New (Polish currency since 1994) |
| PLN | Position/Personnel Line Number |
| PLN | Pure Linux Network |
| PLN | Post-Liturgical Nap |