Zhāng Zhèngláng 張政烺 (zì Yuànfēng 苑峰; 1912–2005) was an eminent 20th-century historian and palaeographer at the Zhōngguó Shèhuì Kēxuéyuàn 中國社會科學院, specialising in pre-Qin and early-medieval texts and on numerical-trigram (shùzìguà 數字卦) interpretations of Western Zhou divination. Together with 李學勤 he concurred (1975) with 馬繼興’s judgement that the Fǔxíng jué zàngfǔ yòngyào fǎyào (KR3eh001) is genuinely pre-Sòng though not as early as the Liáng.