Wáng Xīnjìng 王心敬 (1656–1738), zì Ěrjī 爾緝, hào Fēngchuān 豐川 (after the Fēngchuān 豐川 river in his native region), was a Kāngxī-Yōngzhèng-period Confucian scholar from Hùxiàn 鄠縣 (Xī’ān 西安, Shǎnxī 陝西), and one of the principal Lǐ Yóng 李顒-school scholars of early-eighteenth-century Shǎnxī. He held no major office.

His scholarly output covers the classics broadly (with works on the , Shū, Shī, , Chūnqiū, the Four Books). The Sìkù editors give a sharply mixed assessment: of his jīngxué corpus, the works on the Shū and Chūnqiū are described as “fragmentary, piercing, daring to make heterodox arguments,” while only the commentary — the Fēngchuān Yì shuō 豐川易說 (KR1a0154) — is praised as “elucidating -principle most substantively and clearly.” The contrast within a single author’s output is one of the more striking Sìkù internal discriminations.

The Fēngchuān Yì shuō in ten juàn argues that the is the “book of human-affairs-discourse” (道人事之書), with yīnyáng waxing-and-waning serving as image (xiàng); rejects the chart-tradition entirely (HétúLuòshū, guà biàn, cuò zōng, hùtǐ all set aside); and rejects even the Zuǒ zhuàn-attested ancient divinatory method as too speculative. The Sìkù editors note this is “somewhat over-pressed,” but the work is still vastly superior to chart-and-numerology speculative Yìxué.