Fàn Gōngchèng 范公偁 (fl. mid-twelfth century, Shàoxīng 17–18 / 1147–1148 attested) was a Southern Sòng literatus, the great-great-grandson of 范仲淹 Fàn Zhòngyān 范仲淹 (989–1052), and the only known author from the obscure third son-line of 范仲淹’s second son Fàn Chúnrén 范純仁 (1027–1101). The Sìkù compilers’ reconstruction of his descent (preserved in the tíyào to his sole transmitted work KR3l0058 Guòtíng lù) runs: Zhòngyān 仲淹 → Chúnrén 純仁 → (a youngest, unnamed son who held the Guānglù 光祿 office by hereditary yīn 蔭 privilege and died still in mourning for his father, hence omitted from the Sòng shǐ j. 314 biography of Chúnrén) → Gōngchèng 公偁. Sòng shǐ records only Chúnrén’s two adult sons Zhèngpíng 正平 and Zhèngsī 正思, whom Gōngchèng accordingly styles bózǔ 伯祖 (“senior grand-uncle”). His father (the Guānglù) is recoverable only from the internal evidence of the Guòtíng lù itself.
Gōngchèng’s own career is undocumented: the Sìkù tíyào explicitly states “sìlǚ wèi xiáng” 仕履未詳 (“his official career is not in detail known”). Internal evidence in the Guòtíng lù places him at Chángshā 長沙 in jǐyǒu (1129) accompanying his father in the Jīn-invasion southern flight, and back at Xǔchāng 許昌 (the Fàn family seat since Chúnrén) and Hénán in the 1140s; he writes the work in Shàoxīng 17–18 (1147–1148) from his father’s evening reminiscences (shì yèhuà 侍夜話). The CBDB entry (id 3282) records his name without dates. He has no biography in Sòng shǐ.
The Guòtíng lù 過庭錄 is his only known work. The title alludes to Lúnyǔ 16.13 (Bóyú 伯魚 crossing the courtyard and being taught by Confucius), framing the book as filial transmission of family lore. The work was widely cited in Southern-Sòng and Yuán bǐjì and is one of the most-used internal-family sources for the FànSīmǎHánLǚ Yuányòu loyalist-faction generation.