San Juan Coatzospam is a town and municipality in Oaxaca in south-western Mexico.

The municipality covers an area of 63.79 km².

It is part of the Teotitlán District in the north of the Cañada Region.

As of 2005, the municipality had a total population of 2,019.

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