Qiū Guāngtíng 丘光庭 (also written 邱光庭; fl. late 9th – early 10th c.) was a tàixué bóshì 太學博士 (Erudite of the Imperial College) from Wūchéng 烏程 (Húzhōu 湖州, modern Zhèjiāng). His dating has long been contested: Chén Zhènsūn’s 陳振孫 Zhízhāi shūlù jiětí counts him a Táng man, while the Sòng compendia Xù Bǎichuān xuéhǎi and Huì mì jí style him a Sòng man. The Sìkù quánshū zǒngmù tíyào settles the question on internal evidence: Qiū observes the Táng taboo on Lǐ Shìmín’s 李世民 personal name (writing 世 as 代), which marks him as Táng-trained, while a presentation poem to him survives in the collected works of Luó Yǐn 羅隱 (833–909), placing him as a contemporary into the Five Dynasties — analogous to Mèng Chǎng’s 孟昶 retention of Táng taboo strokes in the Later Shǔ Shíjīng 石經. He is the author of the Jiānmíng shū 兼明書 KR3j0029, one of the four major late-Táng záokǎo 雜考 bǐjì (alongside Yán Shīgǔ’s Kuāngmiù zhèngsú, Lǐ Fú’s Kānwù KR3j0027, and Lǐ Kuāngyì’s Zī xiá jí). He is not in CBDB.