丁璉（，？ - 979年），又名丁匡璉（），越南丁朝開國皇帝丁部領的長子。被其父和北宋冊封為南越王。

972年，丁部領以南越王丁璉的名義遣使攜帶方物，前往北方的北宋朝廷請求冊封。

973年，交州丁璉入宋朝朝廷進貢，宋太祖因此冊封丁部領為交趾郡王，又冊封丁璉為檢校太師、靜海節度使、安南都護。

978年，丁部領以幼子丁項郎為皇太子，丁璉對此非常不滿。

979年春，丁璉派人殺害丁項郎。11月某天晚上，宮廷侍衛杜釋乘丁部領「夜宴醉臥廷中，遂弒之」，同時殺死南越王丁璉。

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Đinh Liễn (丁璉, 940 – October 979) or Đinh Khuông Liễn (丁匡璉), was the eldest son of emperor Đinh Bộ Lĩnh, the founding emperor of Đinh dynasty.

Liễn was granted the title Nam Việt vương (南越王, "king of Nam Việt") after his father ascended the throne. Liễn was sent to Song China to pay tribute in 973, and was granted the title Grand Preceptor of Inspection (檢校太師 Kiểm hiệu thái sư), Jiedushi of Tĩnh Hải quân (靜海軍節度使 Tĩnh Hải quân tiết độ sứ) and Governor of the Protectorate General to Pacify the South (安南都護 An Nam đô hộ) by Song Taizu. In 975, his title was promoted to "Prince of Giao Chỉ" (交趾郡王, Giao Chỉ quận vương) by Song court. Liễn was regarded as the ruler of Vietnam by Song China, though his father was the de facto ruler.

In 978, Đinh Hạng Lang was consecrated as the crown prince, which made Liễn dissatisfied. Liễn assassinated Hạng Lang in spring 979. In October, Liễn and his father were killed by a eunuch named while they were sleeping in the palace courtyard.