San Marcos Arteaga is a town and municipality in Oaxaca in south-western Mexico.

The municipality covers an area of 133.96 km2.

It is part of the Huajuapan District in the north of the Mixteca Region.

As of 2005, the municipality had a total population of 2,110.

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