| Onnaing | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Onnaing (59) Nord-france.svg |
| Arrondissement: | Valenciennes |
| Canton: | Anzin |
| Insee: | 59447 |
| Postal Code: | 59264 |
| Mayor: | Xavier Jouanin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Valenciennes Métropole |
| Coordinates: | 50.3883°N 3.5989°W |
| Elevation M: | 27 |
| Elevation Min M: | 16 |
| Elevation Max M: | 68 |
| Area Km2: | 12.97 |
Onnaing (in French pronounced as /ɔnɛ̃/) is a commune in the Nord department in northern France.[2] Onnaing is home to Toyota Motor Manufacturing France, where the Toyota Yaris and Yaris Cross are assembled.