Dazai Shundai 太宰春臺 (1680–1747), personal name 純 (Jun), zì 純之 (Junshi), hao 春臺 (Shundai), was a Japanese Confucian scholar of the mid-Edo period. Born in Iida 飯田 in Shinano 信濃 province, he served briefly as a samurai in Iida-han before settling in Edo as a private scholar. He became the leading disciple of Ogyū Sorai 荻生徂徠 (1666–1728) after about 1710, and after Sorai’s death was, with Hattori Nankaku 服部南郭 (1683–1759), the principal continuator of the Kogaku-ha 古學派 (“Ancient Learning”) school. Where Nankaku emphasized literature, Dazai concentrated on Confucian classics, ritual, and political economy, and was the school’s leading philologist. His major works include the political-economic treatise Keizai roku 經濟錄 (1729), a polemical critique of Sòng Daoxue Bendō sho 辨道書 (1735), and edited recensions of several classics — most famously the 1731 (Kyōhō 16) edition of the Gǔwén Xiàojīng Kǒngshì zhuàn 古文孝經孔氏傳 (see KR1f0003), which he supplied with phonetic glosses on the Lù Démíng model and which subsequently reached Qīng China through the Nagasaki book trade and was incorporated into the Sìkù quánshū in 1781. He is the only Japanese scholar represented in the Sìkù by an authored or edited work.