NGAO
| Acronym | Definition |
|---|---|
| NGAO | Next Generation Adaptive Optics (various organizations) |
| NGAO | North Georgia Astronomical Observatory |
| NGAO | National Government Audit Office (Philippines) |
| NGAO | Northern Gulf Affairs Office (est. 2003; formerly Office of Special Plans) |
| NGAO | Neuraminidase plus Galactose Oxidase |