NNG
| Acronym | Definition |
|---|---|
| NNG | Nikkei National Geographic (Japan) |
| NNG | Nanning, China (Airport Code) |
| NNG | National Network of Grantmakers |
| NNG | Nielsen Norman Group (also seen as NN/g; Fremont, CA) |
| NNG | Nederlands Nieuw - Guinea |
| NNG | Northern Natural Gas Company (Omaha, NE) |
| NNG | National Number Group (UK) |
| NNG | Net Nuclear Grain |