Jǐngxīng 憬興 (also written 璟興; Korean: Gyeonghŭng; fl. late 7th–early 8th century CE) was a major Silla Korean Buddhist scholar-monk, born in Wéngchuān 熊川 (modern South Ch’ungch’ŏng Province, Korea), with the secular surname Shuǐ 水. He entered the saṃgha at eighteen. When the Silla king Wénwǔ Wáng 文武王 was dying, he left instructions for King Shénwén 神文王 to appoint Jǐngxīng as national preceptor (guóshī 國師); accordingly, in the first year of King Shénwén (681 CE, corresponding to Táng Gāozōng’s Kāiyào 開耀 first year), Jǐngxīng was appointed as national elder (guólǎo 國老) and resided at Sānláng Temple 三郎寺.
He was an extraordinarily prolific author, credited with more than thirty works including: a Dà Nièpán jīng shū 大涅槃經疏 in fourteen fascicles (or seven), a Jīnguāngmíng jīng shùzàn 金光明經述贊 in seven fascicles, a Yàoshī jīng shū 藥師經疏 in one fascicle, and a Sìfēnlǜ jiémó jì 四分律羯磨記. His two works preserved in the Taishō Tripiṭaka are the Wúliàngshòu jīng liányì shùwén zàn 無量壽經連義述文贊 (T1748) and the Sān Mílè jīng shū 三彌勒經疏 (KR6i0040, T1774), the latter being the definitive East Asian commentary treating the three Maitreya sūtras (T452, T454, T456) as a unified canonical system.
Jǐngxīng represents the generation of Silla scholars active after Wŏnhyo 元曉 (元曉) and Uisang (義相); his works show systematic synthesis of the major Chinese and Korean exegetical traditions of his time.