Cháng Shuǎng 常爽 (fl. ca. 430–470), zì Shìmíng 仕明, was a Northern-Wèi 北魏 private classical teacher of mid-5th-century Píngchéng 平城. Native of Hénèi 河內 Wēn-xiàn 溫縣 (modern Wēn-xiàn in Hénán). His standard biography appears in 《魏書》卷84 儒林傳, and derivatively in 《北史》卷81 儒林上.
After the Wèi conquest of Northern Liáng 北涼 in 439, classical scholarship in the north was at a low ebb; Cháng Shuǎng established a private academy (guǎn 館) in Píngchéng, reportedly recruiting some seven hundred disciples, and revived the Liù-jīng curriculum on a teaching basis rather than as a court-sponsored ritual programme. He composed a 《六經略注》 — an abridged commentary on the Six Classics — explicitly as an academy primer; only the self-preface (KR1g0038) survives, embedded in his biography in 《北史》. He also wrote 《六經贊圖》 (charts on the Six Classics) and shorter ritual essays, all lost.
His son 常文通 and grandson 常景 continued the family scholarly tradition. 常景 (478–550) became a prominent court scholar-official; his biography is in 《魏書》卷82 (with notice also in 《北史》卷22). The Cháng family’s three generations represent an unusual case in Northern-Wèi prosopography of a private-academy founder whose pedagogical legacy persisted into the high-official ranks of the next two generations.
CBDB has no entry for him.