| Effry | |
| Commune Status: | Commune |
| Arrondissement: | Vervins |
| Canton: | Hirson |
| Insee: | 02275 |
| Postal Code: | 02500 |
| Mayor: | Alain Michel[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Trois Rivières |
| Coordinates: | 49.9253°N 3.9853°W |
| Elevation M: | 200 |
| Elevation Min M: | 134 |
| Elevation Max M: | 223 |
| Area Km2: | 2.77 |
Effry (in French pronounced as /efʁi/) is a commune in the Aisne department in Hauts-de-France in northern France.