Cuernavaca (Spanish pronunciation: [kweɾnaˈβaka]; Classical Nahuatl: Cuauhnāhuac [kʷawˈnaːwak]"near the woods") is the capital and largest city of the state of Morelos in Mexico. It was established at the archeological site of Gualupita I by the Olmec, "the mother culture" of Mesoamerica, approximately 3200 years ago. It is also a municipality located about 85 km (53 mi) south of Mexico City on the D-95 freeway.

The city was nicknamed the "City of Eternal Spring" by Alexander von Humboldt in the nineteenth century. It has long been a favorite escape for Mexico City and foreign visitors because of this warm, stable climate and abundant vegetation. Aztec emperors had summer residences there, and even today, many famous people as well as Mexico City residents maintain homes there. Cuernavaca is also host to a large foreign resident population, including large numbers of students who come to study the Spanish language.

The name "Cuernavaca" is derived from the Nahuatl phrase "Cuauhnahuac" and means "surrounded by or close to trees". The name eventually was Hispanicized to Cuernavaca because the Spanish could not pronounce the Nahuatl name. The coat-of-arms of the municipality consists of a tree trunk with three branches, with foliage, and four roots colored red. There is a cut in the trunk in the form of a mouth, from which emerges a grey swirl representing speech.