Justus of Tiberias (Tiberias, ca. 35 AD - Galilee, ca 100 AD) was a 1st century Jewish author and historiographer. All that we know of his life comes from the Vita which Flavius Josephus apparently wrote in response to the assertions made by Justus in his History of the Jewish War, published around 93/94 or shortly after 100. Josephus is moreover the only writer to mention this document, but without ever citing the slightest extract. This History published by Justus seems to have disappeared shortly after the publication of the Autobiography of Flavius Josephus, because it is unknown to pagan authors and the Christian authors who mention it only quote what Josephus said.
After the Great Jewish Revolt (66-70), Justus was the secretary of King Agrippa II and waited until his death to publish his History of this revolt. He is also known as the author of two other writings which disappeared much later. Thus in the ninth century, Bishop Photios of Constantinople was still able to access a copy of the Chronicle of the Jewish Kings' written by Justus.