| Acronym | Definition |
|---|
| NIAC➣National Iranian American Council (Washington, DC) |
| NIAC➣Non-International Armed Conflict |
| NIAC➣NASA Institute for Advanced Concepts |
| NIAC➣National Infrastructure Advisory Council |
| NIAC➣Nonprofits' Insurance Alliance of California |
| NIAC➣Net Income Available for Common Stock (finance) |
| NIAC➣National Infrastructure Advisory Committee |
| NIAC➣National Internet Advisory Committee |
| NIAC➣Naval Innovation Advisory Council (US Navy) |
| NIAC➣National Infertility Awareness Campaign |
| NIAC➣Nuclear Industry Assessment Committee |
| NIAC➣Narita International Airport Corporation (Japan) |
| NIAC➣Nuclear Insurance Association of Canada (Ontario, Canada) |
| NIAC➣National Industry Advisory Committee |
| NIAC➣Nipmuc Indian Association of Connecticut |
| NIAC➣National Interagency Aviation Council (National Fire and Aviation Executive Board) |
| NIAC➣National Information & Analysis Center |
| NIAC➣Naval Intelligence Automation Center |
| NIAC➣No I Am Chuck (blog) |
| NIAC➣Navigation Interface and Autopilot Computer |