| San Dionisio Ocotlan | |
| Settlement Type: | Municipality and town |
| Pushpin Map: | Mexico |
| 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: | 20.41 |
| Population As Of: | 2005 |
| Population Total: | 1093 |
| Timezone: | Central Standard Time |
| Utc Offset: | -6 |
| Timezone Dst: | Central Daylight Time |
| Utc Offset Dst: | -5 |
| Coordinates: | 16.75°N -137°W |
San Dionisio Ocotlan is a town and municipality in Oaxaca in south-western Mexico. The municipality covers an area of 20.41 km2. It is part of the Ocotlán District in the south of the Valles Centrales Region
The town was founded by the Spanish in 1526 [1] and its name roughly translates to the "land between the pines" in Nahuatl.
As of 2005, the municipality had a total population of 1,093.[2]