Jang Ju-won (; born 1937) is a modern-day master of Korean jade carving or jadecraft. In 1996 the Cultural Heritage Administration of the Korean government designated jade carving (Okjang) in South Jeolla Province as Intangible Cultural Heritage No. 100, and named Jang as Korea's designated master craftsman in the art.
Jang was largely self-taught, as there were no books, equipment or teachers available to him when he took up jadecraft in the 1960s. Jang works around 40 per cent using traditional methods, combined with his own techniques and skills such as the "loop chain method"—joining two pieces of jade using a carved chain—and a method of creating a circular hole in jade, a technique which took 30 years to master.