| Abbreviation | Definition |
|---|---|
| NUIN | Northwestern University Interdepartmental Neurosciences |
| NUJMB | Northern Universities Joint Matriculation Board |
| NUK | National University of Kaohsiung |
| NUK | Northwest University Kano |
| NUKS | The National Union of Kuwait Students |
| NUL | National and University Library of Slovenia |
| NUL | National University of Lesotho |
| NUL | Northwestern University Library |
| NUL | Núcleo Universitario del Litoral |
| NULIS | National University of Lesotho International School |
| NUM | National University of Management |
| NUM | National University of Mongolia |
| NUMA | Northeastern University Marketing Association |
| NUMAL | National University Model Arab League |
| NUMB | Northwestern University Marching Band |
| NUMC | Newcastle University Mountaineering Club |
| NUMed | Newcastle University Medicine Malaysia |
| NUMI | National University Medical Institutes |
| NUML | National University of Modern Languages |
| NUMS | National University Medical Sciences |