| Pengxi County | |
| Postal Code Type: | Postal code |
| Settlement Type: | County |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sichuan |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Suining |
| Seat Type: | County seat |
| Seat: | Chicheng Town |
| Area Total Km2: | 1251 |
| Population Density Km2: | auto |
| Timezone: | China Standard |
| Utc Offset: | +8 |
Pengxi County is a county of Sichuan Province, China, bordering Chongqing to the southeast. It is under the administration of Suining city.
Pengxi County comprises 1 subdistrict, 17 towns and 2 townships:[1]