| NAOC | National Advisory Organizations Conference 
| Others |
| NAOC | National Airborne Operations Center
| Others |
| NAOC | National Airborne Operations Center (E-4B Aircraft)
| Others |
| NAOC | National Antique Oldsmobile Club
| Others |
| NAOC | National Association of Ordnance AcronymAttic
| Others |
| NAOC | National Association of Ordnance Contractors
| Others |
| NAOC | National Astronomical Observatories of China
| Others |
| NAOC | National Astronomical Observatory of China
| Others |
| NAOC | NATO Association Of Canada
| Others |
| NAOC | Naval Advanced Officers Course
| Others |
| NAOC | Navy Air Operations Center
| Others |
| NAOC | Netherlands Antilles Olympic Committee
| Others |
| NAOC | Network Algorithm for Ocean Color
| Others |
| NAOC | New Adventures of Old Christine
| Others |
| NAOC | New American Opportunity Campaign
| Others |
| NAOC | Nigeria Agip Oil Company
| Others |
| NAOC | Nigerian Agip Oil Company
| Others |
| NAOC | North Absheron Operating Company
| Others |
| NAOC | North American Orienteering Championships
| Others |
| NAOC | North American Ornithological Conference
| Others |
| NAOC | North American Orthodox Church
| Others |