Kyūji

, also known as and , is an ancient Japanese historical text. Its existence is recorded in the Kojiki which claims to have been composed based on its contents. No extant copies are known to exist anymore.

According to the Kojiki preface, Emperor Tenmu said: What I hear is that the Teiki and Honji brought about by the many houses already differ from the truth and contain many inaccuracies. Should those mistakes not be corrected now, the original meaning will be lost within but a few years. They are the basis of the national system and are the foundation of the imperial government. Thus, I would like to carefully examine the Teiki and Kyūji, remove the errors, and establish the truth for future generations.