| Abbreviation | Definition |
|---|---|
| MYT | Marquette Yarns & Threads |
| MYW | Mennonite Your Way Tours |
| MZD | Montgomery Zukerman Davis |
| MZD | Musiczonedirect.com |
| MZF | Make Zones Fast |
| MZG | Mizuno Zoftball Gloves |
| N | Nada |
| N&P | Norwich and Peterborough Building Society |
| N&P,LTD. | Neil Firth and Paul Gray, Limited |
| N1 | Nexus One |
| N2BM | Need to Build Muscle |
| NA | National And |
| NAAC | Nationa Auto Acceptance Corporation |
| NAAC | Native American Advancement Corporation |
| NAAG | North American Archery Group |
| NAB | National Association of Broadcasters |
| NAB | North American Business |
| NABC | New Albanian Brewing Company |
| NABC | New Albany Ballet Company |
| NABEC | Native American Business Enterprise Center |