The Kingdom of Hiran or the Kingdom of Ngoenyang (Thai: อาณาจักรหิรัญเงินยาง, RTGS: Anachak Hiran Ngoenyang listenⓘ) was an early mueang or kingdom of the Northern Thai people from the 7th through 13th centuries AD and was originally centered on Hiran, formerly Vieng Prueksa, in modern-day Thailand near today's Mae Sai district in Chiang Rai, and later on Ngoenyang or Chiang Saen.

[1] In contrast to most contemporary Tai states, Ngoenyang was mentioned in local chronicles, which provide some information about its history.

Lawachangkarat is hypothesized to have been a tribal chief in the area who gained the support of the Lavo Kingdom.

Ngoenyang fell under the dominion of the Lu mueang Chiang Hung in the north around 1250 CE and remained within that orbit until the Mongol invasions again shifted power in the area.

After his victory over Haripuñjaya, King Mangrai founded Wiang Kum Kam as his new capital.