Zhā Shènxíng 查慎行 (also written 查愼行; 1650–1727), zì Chūbái 初白, hào Huǐyú 悔餘, was a Kāngxī-period poet, Yìjīng scholar, and Hànlín official from Hǎiníng 海寧 (Hángzhōu 杭州 / Yánzhōu, modern Zhèjiāng 浙江). He was the elder brother of Zhā Sìtíng 查嗣庭 (executed 1727 in the famous Wéi mín suǒ zhǐ 維民所止 case under the Yōngzhèng emperor — Zhā Shènxíng was caught up in the family disgrace and died shortly thereafter under house arrest).
He passed the jìnshì in Kāngxī guǐwèi 康熙癸未 = 1703 (relatively late, at age fifty-three) and held office as Hànlín Compiler (Hànlín yuàn biānxiū 翰林院編修). He served on the imperial diary-lecture team and was personally selected by Kāngxī to attend the imperial entourage. He is one of the great Kāngxī-period poets, much admired by Yuán Méi 袁枚 in the eighteenth century.
His Yì-scholarship inherits from Huáng Zōngxī 黃宗羲 (黃宗羲), under whom he had studied — explaining his strong commitment to refusing the Sòng Yì-chart tradition. His major Yì work is the Zhōuyì wàn cí jí jiě 周易玩辭集解 (KR1a0143) in ten juàn, with self-preface dated Yōngzhèng jiǎchén 雍正甲辰 = 1724 when he was seventy-five.