Dictys Cretensis () of Knossus was the legendary companion of Idomeneus during the Trojan War, and the purported author of a diary of its events, that deployed some of the same materials worked up by Homer for the Iliad. With the rise in credulity in Late Antiquity, the story of his journal, an amusing fiction addressed to a knowledgeable and sophisticated Alexandrian audience, came to be taken literally.