In Aztec mythology, Tepeyollotl ("heart of the mountains"; also Tepeyollotli) was the god of earthquakes, echoes and jaguars. He is the god of the Eighth Hour of the Night, and is depicted as a jaguar leaping towards the sun. He may be the same as Mictlantecutli, Tlaltecuhtli, Teoyaomicqui and Tezcatlipoca.
The word is derived as a compound of the Nahuatl words tepētl ("mountain"), and yōllōtl ("heart" or "interior").