Möng Yawng was historically one of the
Shan States, largely inhabited by the
Wa people. It was annexed by
Kengtung State in 1815. The capital was the town of
Mong Yawng. Prior to 2011, it was part of the
Mong Hpayak District. In 2022, Mong Yawng Township was promoted to its own district by the
Ministry of Home Affairs splitting off from
Tachileik District. Today, the district only has one township - Mong Yawng Township and its informal subdivision the
Mong Yu Subtownship. The township is mostly part under
Eastern Shan State Special Region 4 administration, especially the Mong Yu Subtownship, where it is known as
Nanban District. ==References==