Shí Yùkūn 石玉昆 (fl. ca. 1840s–1860s) was a professional oral storyteller (shuōshū rén 說書人) and ballad-singer (gǔcí 鼓詞 performer) active in Tiānjīn and Běijīng during the Dàoguāng and Xiánfēng periods. He is traditionally credited as the oral source for the chivalric-detective novel Sān Xiá Wǔ Yì 三俠五義 (Three Heroes and Five Gallants), which was transcribed from his performances and published in 1879 (Guāngxù 5) in 120 chapters by the Běijīng publishing house Jùzhēn táng 聚珍堂 under the title Zhōngliè xiáyì zhuàn 忠烈俠義傳.
The work centers on the Song-dynasty magistrate Bāo Zhěng 包拯 (Judge Bao, 999–1062) and a set of chivalric heroes who assist him in delivering justice. Shí Yùkūn’s narrative, as transcribed, is generally regarded as a compilation and elaboration of existing oral tales about Judge Bao circulating in north China. He also produced a separately transmitted ballad version, the Lóngtú gōng’àn 龍圖公案 cycle.
The eminent scholar 俞樾 Yú Yuè revised the transcribed text in 1889, retitling it Qī Xiá Wǔ Yì 七俠五義 (Seven Heroes and Five Gallants) and making corrections to episodes he judged factually or literarily problematic. This revised edition became the standard version. Shí Yùkūn’s original contribution is credited in the standard bibliographies but his personal biography — native place, birth and death dates, and other works — remains unknown. CBDB does not record him.
Works in the Kanripo corpus: Qī Xiá Wǔ Yì, Part 1 (KR4k0209) and Part 2 (KR4k0210).