Shī Décāo 施德操 (zì Yànzhí 彥執; fl. c. 1120–1150) was a Southern-Sòng literatus of Hǎiyán 海鹽 (Zhèxī, modern Zhèjiāng), known principally as an early Dàoxué sympathiser and an associate of 張九成 Zhāng Jiǔchéng (1092–1159) of the Héngpǔ 横浦 school. The Sìkù quánshū zǒngmù tíyào records that he was an invalid all his life (bìngfèi zhōngshēn 病廢終身), held no recorded office, and is consequently absent from the standard local gazetteers; his lifedates are not preserved in CBDB (entry 43194, with all year-fields blank). His friendship with Zhāng Jiǔchéng is documented by the appendix of his Mèngzǐ fātí 孟子發題 to Zhāng’s Héngpǔ jí 横浦集; this places him in the southern-Zhè Dàoxué circles of the Jiànyán — Shàoxīng decades.
Doctrinally Shī aligned with the Luò (Chéng-brothers) school over the Shǔ (Sūshì) school, while his teacher-friend Zhāng Jiǔchéng was openly attracted to Chán Buddhism — Shī himself, on the Sìkù compilers’ reading, was more sober in his Chéng-school commitments though showing some Héngpǔ-school influence (notably in a xìngè-tinged reading of Mèngzǐ 7A.4). Surviving works: KR3l0070 Běichuāng zhìguǒ lù 北牕炙輠錄 (2 juàn, a Dàoxué-inflected bǐjì); Mèngzǐ fātí 孟子發題 (appended to Zhāng Jiǔchéng’s Héngpǔ jí). His other writings are lost.