| New I/O |
Information Technology |
NIO |
| Not In Order |
Accounting |
NIO |
| Nicaraguan Cordoba Oro |
Country Currency |
NIO |
| Nuveen Municipal Opportunity Fund, Inc. |
NASDAQ Symbol |
NIO |
| Nioki, Zaire |
Regional Airport Code |
NIO |
| Network Input Output |
Computer and Networking |
NIO |
| Nuveen Insured Municipal Opportunity Fund |
NYSE Symbol |
NIO |
| New Initiatives Office |
Military |
NIO |
| Nioki |
Airport Code |
NIO |
| New Input/ Output |
Computer Software |
NIO |
| National Institute of Oceanography |
Ocean Science |
NIO |
| native input/output |
Government |
NIO |
| Northern Ireland Office |
Local State |
NIO |
| New Imperial Order |
US Government |
NIO |
