| Abbreviation | Definition |
|---|---|
| LPIC | Linux Professional Institute Certification |
| LPIC | Louisiana Policy Institute for Children |
| LPMI | Lay Pastoral Ministry Institute |
| LPOI | Little Patuxent Opera Institute |
| LPRI | Livestock Production Research Institute |
| LPSI | Livestock and Poultry Sciences Institute |
| LPTI | Laurel Psychodrama Training Institute |
| LPTI | LLA Professional Training Institute |
| LRRI | Lovelace Respiratory Research Institute |
| LSBI | Life Sciences and Biotechnology Institute |
| LSI | Learning Sciences Institute |
| LSI | Learning Systems Institute |
| LSI | Life Sciences Institute |
| LSIG | La Salle Institute of Governance |
| LSLI | Lake and Stream Leaders Institute |
| LSLI | Louisiana State Law Institute |
| LSPI | Law School Preparation Institute |
| LSRI | Lake Superior Research Institute |
| LSRI | Learning Sciences Research Institute |
| LSRI | Learning Sciences Resource Institute |