| Acronym | Definition |
|---|
| LTAA | Lighter than Air Aircraft |
| LTAA | Light Truck Accessory Alliance (formerly Truck Cap & Accessory Alliance) |
| LTAA | Lawn Tennis Association of Australia |
| LTAA | Leadership Texas Alumnae Association |
| LTAA | Land Title Association of Arizona |
| LTAA | Long Term Annual Average |
| LTAA | Land Tax Assessment Act 2002 (Australia) |
| LTAA | Lehigh Township Athletic Association |
| LTAA | Life Time Achievement Award |
| LTAA | Lebanon Township Athletic Association (New Jersey) |
| LTAA | Lighter Than Air America Incorporated |
| LTAA | Long Term Active Archive |
| LTAA | Long Trail Alumni Association |
| LTAA | Law on Trade Administration Automation |
| LTAA | License Technical Assistant Agreement |
| LTAA | Logistique & Transport Agro-Alimentaire |