| Acronym | Definition |
|---|
| NNC | National Nutrition Council (Philippines) |
| NNC | National Network Congestion |
| NNC | Network to Network Communication |
| NNC | Numeric Nutrient Criteria (environment) |
| NNC | Naga National Council (India) |
| NNC | National Neighborhood Coalition |
| NNC | National Negro Congress |
| NNC | Neural Network Council (IEEE) |
| NNC | NASCAR Nextel Cup (stock car racing circuit) |
| NNC | National Nominating Committee (various organizations) |
| NNC | Navy Nurse Corps |
| NNC | Neural Network Controller |
| NNC | Natal Native Contingent (Africa) |
| NNC | National Notification Center |
| NNC | Newbridge Networks Corporation |
| NNC | Neighborhood Networks Center |
| NNC | Notice of Noncompliance |
| NNC | Nehemiahs Neighbors Church |
| NNC | Numismatic Network Canada |
| NNC | Natural Nutrition Center |
| NNC | Nordic Net Center (Danish) |
| NNC | National Nudist Council of the Americas |
| NNC | National Nutraceutical Center |
| NNC | Noticeable Negative Change |
| NNC | Niigata Nursing College (Niigata, Japan) |