| Abbreviation | Definition |
|---|---|
| NLHS | Northland Lutheran High School |
| NLMC | New Life Missionary Church |
| NLR | Never Lose Respect |
| NLT | New Life Tabernacle |
| NLTI | Niagara Lutheran Theological Institute |
| NLV | New Life Voices |
| NLWC | New Life Wesleyan Church |
| NMBC | National Muslim Business Council |
| NMBC | New Monumental Baptist Church |
| NMCA | National Missionary Council of Australia |
| NMCF | Northern Michigan Catholic Foundation |
| NME | New Member Education |
| NMI | Nazarene Missions International |
| NMPC | North Macon Presbyterian Church |
| NMU | New Massachusetts Universalist |
| NMUC | New Massachusetts Universalist Convention |
| NMUL | Notts Muslim Unity League |
| NMY | Northmen Movement Yesterday |
| NNB | New National Baptist |
| NNBH | New National Baptist Hymnal |