| San Juan de Yanac | |
| Native Name: | Yanaq |
| Native Name Lang: | qu |
| Settlement Type: | District |
| Mapsize: | frameless |
| Subdivision Type: | Country |
| Subdivision Name: |  Peru |
| Subdivision Type1: | Region |
| Subdivision Name1: | Ica |
| Subdivision Type2: | Province |
| Subdivision Name2: | Chincha |
| Parts Type: | Subdivisions |
| Parts Style: | para |
| Established Title: | Founded |
| Established Date: | February 12, 1965 |
| Seat Type: | Capital |
| Seat: | San Juan de Yanac |
| Leader Title: | Mayor |
| Leader Name: | Edgar Rodríguez |
| Unit Pref: | Metric |
| Area Total Km2: | 500.4 |
| Elevation M: | 2550 |
| Population Total: | 372 |
| Population As Of: | 2012 census |
| Population Density Km2: | auto |
| Timezone1: | PET |
| Utc Offset1: | -5 |
| Blank Name Sec1: | UBIGEO |
| Blank Info Sec1: | 110208 |
San Juan de Yanac District is one of eleven districts of the province Chincha in Peru.[1]