| Étreillers | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Étreillers (Aisne).svg |
| Arrondissement: | Saint-Quentin |
| Canton: | Saint-Quentin-1 |
| Insee: | 02296 |
| Postal Code: | 02590 |
| Mayor: | Jean-Marie Remy[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays du Vermandois |
| Coordinates: | 49.8297°N 3.1611°W |
| Elevation M: | 100 |
| Elevation Min M: | 81 |
| Elevation Max M: | 125 |
| Area Km2: | 8.69 |
Étreillers (in French pronounced as /etʁɛje/) is a commune in the Aisne department in Hauts-de-France in northern France.