* Mayans: The Mayans spoke a family of languages known as Mayan languages. There were over 30 different Mayan languages, with Yucatec Maya being the most prominent and widely spoken. Other important Mayan languages include Ch'orti', K'iche', and Tzotzil.
* Aztecs: The Aztecs spoke Nahuatl, a language within the Uto-Aztecan language family. Nahuatl was the language of the Aztec Empire and was widely spoken throughout Mesoamerica.
It's important to remember that these were not single, unified languages, but rather a diverse family of languages with regional variations and dialects.