| Acronym | Definition |
|---|
| LEIF➣Leif Erikson International Foundation |
| LEIF➣Lightweight Enterprise Integration Framework (computer programming; Rogue Wave) |
| LEIF➣Lithuanian Environmental Investment Fund (est. 1996; environmental projects) |
| LEIF➣Lightweight Extensible Information Framework |
| LEIF➣Leaving Early, It's Friday |
| LEIF➣Lyric Enhancement Interface Framework (Chyron Corporation) |
| LEIF➣Lions Eye Institute Foundation (Lions Eye Institute for Transplant & Research; Tampa, FL) |