| NAO | National Audit Office | - | Chatting Acronyms |
| NASD | National Association Of Securities Dealers | - | Chatting Acronyms |
| NASDAQ | National Association Of Securities Dealers Automated Quotation (world's First Automated Financial System). Nasdaq Now A Proper Noun. | - | Chatting Acronyms |
| NAV | Net Asset Value | - | Chatting Acronyms |
| NDPB | Non-Departmental Public Bodies | - | Chatting Acronyms |
| NGFL | National Grid For Learning | - | Chatting Acronyms |
| NHMF | National Heritage Memorial Fund | - | Chatting Acronyms |
| NILO | National Investments And Loans Office | - | Chatting Acronyms |
| NL | No Load | - | Chatting Acronyms |
| NMAC | Nissan Motor Acceptance Corporation | - | Chatting Acronyms |
| NNDR | National Non Domestic Rates | - | Chatting Acronyms |
| NRF | Neighbourhood Renewal Fund | - | Chatting Acronyms |
| NSCA | Non Scoring Credit Approval | - | Chatting Acronyms |
| NYSE | New York Stock Exchange | - | Chatting Acronyms |
