Li Chunfeng (simplified Chinese: 李淳风; traditional Chinese: 李淳風; pinyin: Lǐ Chúnfēng; Wade–Giles: Li Ch'un-feng; 602–670) was a Chinese astronomer, mathematician, historian, and official of the early Tang dynasty, born in present-day Baoji, Shaanxi. He served as director of the Imperial Astronomical Bureau, reformed the calendar, annotated the classical Chinese mathematical canon, and co-compiled the astronomical and calendrical treatises of the official Tang histories.
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