Nyà Ângbyà Ân is a county in North Pyà Ângan Province, North Korea. It borders the cities of Kaechà Ân and Anju, and covers an area of 504 km<sup>2</sup>.
The city was heavily fortified during the 15th century as a result of its strategic position, and during the Josà Ân dynasty, became a retreat for the aristocratic ryangban due to its fantastic scenery. The city's Yaksan, meaning medicine mountain, was well known for its azaleas; the modern poet Kim So-wol wrote one of his best-known poems on this subject. Two other mountains, Yaksan-dongdae, east of Yaksan, and Moran Hill are also scenic spots. Nyà Ângbyà Ân also houses many important relics, including the Chà Ânju and Sound Buddhist temples, dating from 1345 and 1684 respectively; the Ryuksung Pavilion, famous for "six scenic views" of Nyà Ângbyà Ân; and the Ch'à Âl'ong Castle, built to protect the city during the Ri dynasty. The south gate of Nyà Ângbyà Ân, called Mannomun, is also nearby.
Nyà Ângbyà Ân county is divided into 1 à Âp (town), 1 rodongjagu (workers' district) and 26 ri (villages):
The Nyà Ângbyà Ân Nuclear Scientific Research Centre, a major component of the North Korean nuclear program, is located here.
The Chà Ângnyà Ân Pharwà Ân Line of the Korean State Railway passes through Nyà Ângbyà Ân county.