| Auteco Nahuatl | |
| States: | Jalisco |
| Region: | Autlán |
| Era: | Colonial |
| Familycolor: | Uto-Aztecan |
| Fam1: | Uto-Aztecan |
| Fam2: | Aztecan (Nahuan) |
| Fam3: | Nahuatl |
| Script: | Latin |
| Iso3: | none |
| Glotto: | none |
Auteco was a Nahua language spoken in the Milpa valley area of Jalisco prior to the coming of the Spanish. It is now extinct.