| Abbreviation | Definition |
|---|---|
| NLADA | National Legal Aid and Defender Association |
| NLCHP | National Law Center on Homelessness and Poverty |
| NLCI | National Latino Children's Institute |
| NLDEF | NAACP Legal Defense and Education Fund |
| NLDF | NOW Legal Defense Fund |
| NLEOMF | National Law Enforcement Officer Memorial Fund |
| NLF | National League of Families of American Prisoners and Missing in Southeast Asia |
| NLF | Navy League Foundation |
| NLH | National Listing of Homeless Shelters |
| NLHO | National Latina Health Organization |
| NLIHC | National Low Income Housing Coalition |
| NLLA | North London Lettering Association |
| NLN | National League for Nursing |
| NLN | National Lymphedema Network |
| NLNIAC | National Lymphedema Network International Advisory Committee |
| NLRA | National Leukemia Research Association |
| NLSC | National Language Service Corps |
| NLSO | Nonprofit Leadership Student Organization |
| NMAC | National Minority AIDS Council |
| NMBC | National Minority Business Council |