| Santiago Tlazoyaltepec | |
| Settlement Type: | Municipality and town |
| Pushpin Label Position: | above |
| Pushpin Map Caption: | Location in Mexico |
| Subdivision Type: | Country |
| Subdivision Name: |  Mexico |
| Subdivision Type1: | State |
| Subdivision Name1: | Oaxaca |
| Area Total Km2: | 93.13 |
| Population As Of: | 2005 |
| Population Total: | 4,357 |
| Timezone: | Central Standard Time |
| Utc Offset: | -6 |
| Timezone Dst: | Central Daylight Time |
| Utc Offset Dst: | -5 |
| Elevation M: | 2,540 |
Santiago Tlazoyaltepec is a town and municipality in Oaxaca in south-western Mexico. The municipality covers an area of 93.13 km2. It is part of the Etla District in the Valles Centrales region.As of 2005, the municipality had a total population of 4,357.[1]