| Term | Full Form | Category |
|---|---|---|
| FNO | Failure's No Option | Others |
| FNO | Fashion's Night Out | Others |
| FNO | Father Nature Outdoors | Others |
| FNO | Festival Network Online | Others |
| FNO | Finding Neverland Online | Others |
| FNO | First Name Only | Others |
| FNO | Fixed Network Operator | Others |
| FNO | Flushing Night Out | Others |
| FNO | For N Output | Others |
| FNO | For No One | Others |
| FNO | Friday Night Out | Others |
| FNO | From Now On | Others |
| FNO | Frozen natural orbitals | Others |
| FNO | Future And Options | Others |
| FNO | Futures and Options | Others |