Najeong Well (), is a historic well in the forest of Najeong in Gyeongju, South Korea. On 20 November 1975, it was designated Historic Site of South Korea No. 245. The well is said to be the birthplace of Park Hyeokgeose, the founder of Silla.
In the South Korean TV series, , the young True bones meet here to fight, and, Najeong being a sacred place, are subject to death, a death which is avoided, by swearing to become Hwarang with allegiance not to their families but to Silla and its king.