Annio da Viterbo, Italian friar, historian, and scholar (b. 1432)
Annius of Viterbo (Latin: Joannes Annius Viterb(i)ensis; 5 January 1437 – 13 November 1502) was an Italian Dominican friar, scholar, and historian, born Giovanni Nanni (Nenni) in Viterbo. He is now remembered for his fabrications.

He entered the Dominican Order early in life. He obtained the degree of Master of Theology from the studium generale at Santa Maria sopra Minerva, the forerunner of the College of Saint Thomas and the Pontifical University of Saint Thomas Aquinas, Angelicum. He served as a lector at the studium sometime before 1466.He was highly esteemed by Sixtus IV and Alexander VI; the latter made him Master of the Sacred Palace in 1499.

As a linguist, he spuriously claimed to be skilled in the Oriental languages. Walter Stephens says: "His expertise in Semitic philology, once celebrated even by otherwise sober ecclesiastical historians, was entirely fictive." Annius also claimed to be able to read Etruscan.

In perhaps his most elaborate pseudo-archeological charade, in the autumn of 1493, he undertook a well-publicized dig at Viterbo, during which marble statues of some of the most dramatic of the mythical figures associated with the city's legendarium appeared to be unearthed; they had all been "salted" in the site beforehand.