| San Miguel Piedras Mixtec | |
| States: | Mexico |
| Region: | Oaxaca |
| Ethnicity: | 1,120 (1990 census) |
| Speakers: | 460 |
| Date: | 2000 |
| Ref: | e18 |
| Familycolor: | American |
| Fam1: | Oto-Manguean |
| Fam2: | Mixtecan |
| Fam3: | Mixtec |
| Iso3: | xtp |
| Glotto: | sanm1294 |
| Glottorefname: | San Miguel Piedras Mixtec |
San Miguel Piedras Mixtec is a moribund Mixtec language of Oaxaca. It is not close to other varieties of Mixtec.