| Abbreviation | Definition |
|---|---|
| LMCF | Louisiana Moral Civic Foundation |
| LMNF | Love My Neighbor Foundation |
| LMPF | Louisville Metro Police Foundation |
| LOEM | League Of Extraordinary Minds |
| LOF | Living Oceans Foundation |
| LOPF | Lions Of Pennsylvania Foundation |
| LORF | Love of Reading Foundation (Canada) |
| LPAF | Los Pen Academy Foundation |
| LPDSF | Lawrence P Doss Scholarship Foundation |
| LPF | Loss Prevention Foundation |
| LPSF | Lincoln Public School Foundation |
| LPSF | Lincoln Public Schools Foundation |
| LPSF | Littleton Public Schools Foundation |
| LQF | Louisiana Quality Foundation |
| LQFN | Lions Quest Foundation Norway |
| LSCF | Lake Simcoe Conservation Foundation |
| LSF | Lanka Software Foundation |
| LSF | Life Sciences Foundation |
| LSF | Lone Survivor Foundation |
| LSF | Loughborough Schools Foundation |