Wú Yǒng 吳泳 (fl. 1209–1245), zì Shūyǒng 叔永, hào Hèlín 鶴林, was a Southern Sòng official and prose stylist from Tóngchuān 潼川 (Sìchuān). He passed the jìnshì examination in Jiādìng 2 (1209), and under Lǐzōng held a series of central court posts: qǐjū shèrén 起居舍人 with concurrent service in the Xuéshìyuàn, acting Minister of Justice (quán Xíngbù shàngshū), and finally Bǎozhānggé xuéshì with the Prefecture of Quánzhōu, where he died in office. His historical importance lies in his memorials of the Shàodìng and Duānpíng eras (1228–1236) on the strategic crisis on the Sìchuān frontier under Mongol pressure: the Xīchuí bāyì (1229), Sìshī sānyōu and BǎoShǔ sāncè (1232), the HuàiShǔ sìzhèng and JiùShǔ wǔcè sequences (1235–36) — comprising one of the densest extant late-Sòng strategic critiques of the LiánMéng mièJīn policy. The Sìkù editors paired him stylistically with the Méishān Sū family and ranked him just below Wèi Liǎowēng 魏了翁 魏了翁 among late-Sòng Shǔ literati. His collection Hèlín jí 鶴林集 KR4d0315 survives only as a 40-juǎn Yǒnglè dàdiǎn reconstruction. CBDB notes that Wú Yǒng eventually fled Sichuan to live in Wúxìng 吳興.
There are several CBDB persons named 吳泳; this is the zì Shūyǒng, hào Hèlín person (CBDB 13809), distinguished by the alternate name records.