The Codex Zouche-Nuttall or Codex Tonindeye is an accordion-folded pre-Columbian document of Mixtec pictography, now in the collections of the British Museum. It is one of about 16 manuscripts from Mexico that are entirely pre-Columbian in origin. The codex derives its name from Zelia Nuttall, who first published it in 1902, and Baroness Zouche, its donor.

Zelia Maria Magdalena Nuttall was an American archaeologist and anthropologist who specialised in pre-Aztec Mexican cultures and pre-Columbian manuscripts. She discovered two forgotten manuscripts of this type in private collections, one of them being the Codex Zouche-Nuttall. She decoded the Aztec calendar stone and was one of the first to identify and recognise artefacts dating back to the pre-Aztec period.