Zhōu Yúqī 周於漆 (Qīng; dates and native place unrecorded) is the attributed author of the Sāncái shíyì tiānjí 三才實義天集 (KR3fa027), a substantial twenty-two-juǎn work on the “tiān” portion of the classical sāncái 三才 (Heaven, Earth, Man) triad — i.e., the astronomical sub-volume of a presumed larger trilogy. He is otherwise undocumented; not in CBDB.