| Acronym | Definition |
|---|
| LRN | Laboratory Response Network |
| LRN | Linux.ru.net (website) |
| LRN | Line Routing Number |
| LRN | Location Routing Number |
| LRN | Lead Round Nose (round, lead bullet with no outer jacket) |
| LRN | Local Routing Number |
| LRN | Learning Resource iNterchange (Microsoft) |
| LRN | Lateral Reticular Nucleus |
| LRN | Ley de Reconciliación Nacional (Spanish: National Reconciliation Act; Guatemala) |
| LRN | Long Range Navigation (also seen as LRNAV) |
| LRN | Local Roaming Number |
| LRN | Local Range Network |
| LRN | Lay Reference Number |
| LRN | Legal Reform Now |
| LRN | Limited Recourse Note |