San Dionisio Ocotlan is a town and municipality in Oaxaca in south-western Mexico.

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.

This article about a location in the Mexican state of Oaxaca is a stub.