Gāo Sīdé 高斯得 (b. 1201, d. uncertain — between 1276 and the late 1280s), zì Bùwàng 不妄, sobriquet Chǐtáng 恥堂 (“Hall of Shame”), was a native of Pújiāng 蒲江 in Qióngzhōu 卭州 (modern Sìchuān). He came from one of the most distinguished Daoxue families of late-Sòng Shǔ: his father Gāo Jià 高稼 was killed in 1235 defending Miǎnzhōu 沔州 against the Mongols, and his maternal uncle was Wèi Liǎowēng 魏了翁 (1178–1237), the Hèshān xiānshēng and one of the foundational figures of late-Sòng orthodox Daoxue politics. Gāo took the jìnshì in Shàodìng 2 (1229) and was recruited by Lǐ Xīnchuán 李心傳 (compiler of the Jiànyán yǐlái xìnián yàolù) into the Historiography Office.
His political career was defined by repeated confrontation with the three successive de facto chancellors of the late Sòng: he was thwarted by Shǐ Sōngzhī 史嵩之 in the 1240s, blocked by Jiǎ Sìdào 賈似道 through the 1260s, and finally dismissed at the instigation of Liú Mèngyán 留夢炎 in the early 1270s. He rose to Duānmíngdiàn xuéshì 端明殿學士 and Signing Officer of the Bureau of Military Affairs (QiānshūShūmìyuànshì 簽書樞密院事) concurrently Vice Grand Councilor (Cānzhīzhèngshì 參知政事). Lǐzōng called him yìnghàn 硬漢 (“a hard fellow”), a sobriquet preserved in the Sòngshǐ. After the fall of Hángzhōu in 1276 he retired to the TiáoZhà 苕霅 region of Húzhōu, where he died.
Apart from the surviving Chǐtáng cúngǎo (KR4d0352), recovered from the Yǒnglè dàdiǎn, he produced explanations of the Yì and Shī, additions to Dù Yòu’s Tōngdiǎn, and (as compiler of the History Office) the Xiàozōng shílù 孝宗實錄. His Sòngshǐ biography is at j. 409.