LY
| Acronym | Definition |
|---|---|
| LY | Last Year |
| LY | Lady (British title of nobility) |
| LY | Love Ya |
| LY | Langley (energy distribution measurement unit) |
| LY | Libya |
| LY | El-Al (Israel Airways) |
| LY | Light Year |
| LY | Leap Year |
| LY | Life Years |
| LY | Light Yagami (Death Note anime character) |
| LY | Linear Yard |
| LY | Linear Yards |
| LY | Line Yield |
| LY | Lean Yield |
| LY | Long-Yearlings |