| Acronym | Definition |
|---|
| LEAF | Legal Education and Action Fund |
| LEAF | Law Enforcement & Armed Forces (apparel) |
| LEAF | Linux Embedded Appliance Firewall |
| LEAF | Leading, Environmentally Friendly, Affordable Family Car (various companies) |
| LEAF | Large Effective Area Fabric |
| LEAF | Local Enhancement and Appreciation of Forests (Canada) |
| LEAF | Legal Environmental Assistance Foundation |
| LEAF | Leonardo Education and Art Forum (International Society for the Arts, Sciences and Technology) |
| LEAF | Law Enforcement Access Field |
| LEAF | Linking and Exploring Authority Files |
| LEAF | Lettinga Associates Foundation |
| LEAF | Lakshmi Energy and Foods (India) |
| LEAF | Leaders in Environmentally Accountable Foodservice (Canada) |
| LEAF | Law Enforcement Assistance Fund (Colorado) |
| LEAF | Large Effective Area Fiber (Corning) |
| LEAF | Leading, Environmentally Friendly, Affordable Family Vehicle (Nissan) |
| LEAF | Learning and Ecological Activities Foundation for Children (est. 1998; Japan) |
| LEAF | Laser Electron Accelerator Facility (BNL) |
| LEAF | Laser Environmental Airborne Fluorosensor |
| LEAF | Lisgar Environmental Action Force |
| LEAF | Lake Elsinore Animal Friends |
| LEAF | Life Energy and Future |
| LEAF | Logistics Education Assistance Fund |
| LEAF | Law Enforcement Analysis Facility |
| LEAF | Ludlow Education Assistance Fund |
| LEAF | Low Energy Absorption Forum |