Lǐ Hàn 李瀚 (fl. mid-8th c.) is the Táng author of the Méngqiú 蒙求 (KR3k0010), the foundational rhymed primer of historical gùshí presented to the throne in Tiānbǎo 天寶 5 (746) according to Hú Sānxǐng’s note on the Zīzhì tōngjiàn. No biography survives in either of the Two Táng Histories, and the CBDB record (id 185588, d. 802) probably refers to a Táng homonym rather than to the Méngqiú author, who was, according to the Tàipíng guǎngjì 太平廣記 colophon, a Yīncí Hézhōng 隂祠河中 official of the Tiānbǎo period. The work was for over a millennium the standard East Asian primer of historical knowledge, and was glossed in Sòng China by Xú Zǐguāng (the surviving Méngqiú jízhù) and independently in Heian Japan by Minamoto no Mitsuyuki. Multiple CBDB ids for “Lǐ Hàn” exist; none with confidence matches this figure.