Wáng Jièzhī 王介之 (1606–1686), zì Shíyá 石崖 (also Shízǐ 石子), was a late-Míng / early-Qīng Chūnqiū scholar from Héngyáng 衡陽 (Húguǎng, modern Húnán). He was the elder brother of Wáng Fūzhī 王夫之 (王夫之), the celebrated Míng-loyalist philosopher, and shared his brother’s loyalist orientation, refusing all Qīng appointments after the dynastic transition. Lifedates given by CBDB (id 69080) and the Qīngdài rénwù shēngzú niánbiǎo 清代人物生卒年表 (#1058) as Wànlì 33 (1605/06) to Kāngxī 24 (1686), followed here.
He is recorded in the local Héngyáng gazetteer and in the Qīng shǐ liè zhuàn 清史列傳 (rúlín section) chiefly as the elder brother of Chuánshān 船山 (Wáng Fūzhī). His own surviving classical work is the Chūnqiū sì zhuàn zhì 春秋四傳質 (KR1e0091) in two juǎn, a critical comparison of the Zuǒ, Gōngyáng, Gǔliáng, and Hú Ānguó 胡安國 (胡安國) commentaries on the Chūnqiū; the Sìkù tíyào praises him for “raising himself a thousand fathoms above the vulgar” (bá sú qiān xún 拔俗千尋) in his ability to deploy ancient evidence against Hú Ānguó’s reading. CBDB id 69080.