In Aztec mythology, Patecatl is a god of healing and fertility, and the discoverer of peyote as well as the "lord of the root of pulque ". With Mayahuel, he was the father of the .
In the Aztec calendar, Patecatl is the lord of the thirteen days from 1 Monkey to 13 House. The preceding thirteen days are ruled over by Mictlantecuhtli, and the following thirteen by Itztlacoliuhqui.