Kǎn Yīn 闞駰 (also romanized Kàn Yīn; fl. early 5th century, d. *c.*439 CE), a scholar (bóshì 博士) at the court of the Northern Liáng 北涼 ruler Jùqú Méngxūn 沮渠蒙遜 (r. 401–433). He served as an academician and was reputed to be among the most learned men of the Héxī 河西 corridor. His biography appears in Wèishū 魏書 juàn 52 alongside other northwestern literati such as Sòng Yáo 宋繇 and Liú Bǐng 劉昞.
Kǎn Yīn’s principal work is the Shísān zhōu zhì 十三州志 (KR2k0157) in 13 juàn, a systematic survey of Chinese administrative geography organized according to the Han thirteen-province (shísān cìshǐbù) framework, providing detailed etymological and historical notes on commandery and county names across the Chinese empire. The work was extensively cited in Lì Dàoyuán’s Shuǐjīng zhù 水經注 and later geographic encyclopedias.
He died around 439 CE, when the Northern Wei conquered the Northern Liáng — the final of the Sixteen Kingdoms — and absorbed the Héxī corridor into the unified Northern Wei empire.