| Abbreviation | Definition |
|---|---|
| AGNB | aerobic Gram negative bacilli |
| AGNB | Age Gender No Bar |
| AGNB | Anaerobic Gram Negative Bacilli |
| AGNC | Associated Governments of Northwest Colorado |
| AGNE | Associated Grocers of New England |
| AGNES | Age Gain Now Empathy System |
| AGNES | Age Gain Now Empathy System?? |
| AGNF | Abhainn Gleann nam Fiadh |
| AGNOSTIC | Agnosticism |
| AGNS | A Gallery Named Sue |
| AGNS | Art Gallery of Nova Scotia |
| AGNT | Analysis Geometry And Number Theory |
| AGNY | Average Games Next Year |
| AGO | Acquisition and Grants Office |
| AGO | Adjutant Generals Office |
| AGO | Aeroplanbau Gustav Otto |
| AGO | Aerowerke Gustav Otto |
| AGO | Alpha Gamma Omega |
| AGO | America's Great Outdoors |
| AGO | another great opportunity |