| Southern Popoloca | |
| States: | Mexico |
| Region: | Puebla |
| Speakers: | 7,000 |
| Date: | 1991–1993 |
| Ref: | e18 |
| Familycolor: | American |
| Fam1: | Oto-Manguean |
| Fam2: | Popolocan |
| Fam3: | Chocho–Popoloca |
| Fam4: | Popoloca |
| Lc1: | poe |
| Ld1: | San Juan Atzingo |
| Lc2: | pbe |
| Ld2: | Metzontla |
| Glotto: | sanj1285 |
| Glottoname: | San Juan Atzingo |
| Glottorefname: | San Juan Atzingo Popoloca |
| Glotto2: | mezo1235 |
| Glottoname2: | Mezontla |
| Glottorefname2: | Mezontla Popoloca |
Southern Popoloca is an indigenous language of Puebla state, Mexico. There are two principal varieties, sometimes counted as distinct languages: