Louis Antoine de Poirot (1735–1813) was a Jesuit painter and translator of the 18th and early 19th century, who worked in the service of the Chinese emperor Qianlong adopting the Chinese name He Qingtai (賀清泰). He was the last of the Western painters who worked for Qianlong, together with Father Giuseppe Panzi. The two painters replaced the more famous father Giuseppe Castiglione and Jean-Denis Attiret.
Poirot also made a translation of the Old Testament in the Manchu language, and a translation of the New Testament into the Chinese language. He was also in charge of the translations between Latin and Manchu for the diplomatic correspondence between Pekin and Saint Petersburg (Russia).