| Acronym | Definition |
|---|
| LNA | Low-Noise Amplifier |
| LNA | Locked Nucleic Acid (Link Technologies Ltd.) |
| LNA | Linolenic Acid |
| LNA | Low Noise Amplifier |
| LNA | Linux Network Administration |
| LNA | Local Network Adapter |
| LNA | Linux Network Architecture |
| LNA | Licensed Nursing Assistant |
| LNA | Late Night Alumni (band) |
| LNA | Launch Numerical Aperture |
| LNA | Ladies National Association |
| LNA | Large Network Administration |
| LNA | Lion Nathan Australia (foods) |
| LNA | Local Network Attachment |
| LNA | Leading National Advertisers, Inc. |
| LNA | Lost Note Affidavit |
| LNA | Logistics Net Assessment |
| LNA | Local National Actions |
| LNA | Large National Account |
| LNA | Lancaster Neighborhood Association (Waldorf, Maryland) |
| LNA | LandWarNet (Land Warrior Network) NetOps (Network Operations) Architecture (US DoD) |