| Arthonnay | |
| Commune Status: | Commune |
| Coordinates: | 47.9331°N 4.2306°W |
| Insee: | 89019 |
| Postal Code: | 89740 |
| Arrondissement: | Avallon |
| Canton: | Tonnerrois |
| Mayor: | Josiane Rousseau[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Tonnerrois Bourgogne |
| Elevation Min M: | 229 |
| Elevation Max M: | 353 |
| Area Km2: | 25.50 |
Arthonnay (in French pronounced as /aʁtɔnɛ/) is a commune in the Yonne department in Bourgogne-Franche-Comté in north-central France.