Kyūyō (球陽) is an official history of the Ryūkyū Kingdom compiled between 1743 and 1745 by a group of scholar-officials led by Tei Heitetsu (鄭秉哲). Written in kanbun, and numbering twenty-two scrolls, a supplementary volume in three scrolls documents relations with Satsuma, while a separate volume known as Irō setsuden () is a compendium of one hundred and forty-two legends and folktales formerly transmitted orally. Later records continued to be added to the chronicle until 1876. The name, like Kiyō (崎陽) for Nagasaki and Satsuyō (薩陽) for Satsuma, is likely a poetic invocation of "Ryūkyū".