The Aubin Codex is an 81-leaf Aztec codex written in alphabetic Nahuatl on paper from Europe. Its textual and pictorial contents represent the history of the Aztec peoples who fled Aztlán, lived during the Spanish conquest of the Aztec Empire, and into the early Spanish colonial period, ending in 1608. It is now in the British Museum in London.

Aztec codices are Mesoamerican manuscripts made by the pre-Columbian Aztec, and their Nahuatl-speaking descendants during the colonial period in Mexico.