Princess Huyền Trân (Vietnamese: Huyền Trân Công Chúa, 玄珍公主, Paramecvariin of Champa), was a princess during the Trần Dynasty in the history of Vietnam. She was the daughter of Emperor Trần Nhân Tông and the younger sister of Emperor Trần Anh Tông. In 1306 Trần Anh Tông married off princess Huyền Trân to the Champa King Jaya Sinhavarman III (Vietnamese: Chế Mân, 制旻) and as queen Paramecvariin of Champa, in return for the two provinces of Chau O and Chau Ly (or Chau Ri) (today these provinces are Quảng Bình Province, Quảng Trị Province and Thừa Thiên–Huế Province).
There are few details in the historical record about princess Huyền Trân's life. She was born in 1289 but her year of death is unclear. In 1293 Emperor Trần Nhân Tông abdicated in favor of his son, Trần Anh Tông, in order to join a monastery in a pagoda on Mount Yen Tu in what is now Quảng Ninh Province. In 1301, the Emperor's father, Trần Nhân Tông, visited the Champa kingdom and was given a lavish royal welcome by King Jaya Sinhavarman III. The visit lasted nine months.