Antonio Pacini da Todi or Tudertino (died 1489) was an Italian humanist and translator.
He moved to Florence, where he studied under Francesco Filelfo and tutored Giovanni di Cosimo de' Medici.
In 1470, Ulrich Han published his translations as part of the first printing of Plutarch's Lives.
They were criticized by Filelfo, Giacomo Ammannati, Paolo Cortesi, Marcantonio Sabellico and Desiderius Erasmus.
He wrote a consolatory letter to Acciapaccia on the death of the latter's brother, Consolatio ad cardinalem Capuanum in obitum fratris sui.