Letya Pyanchi (Burmese: လက်ျာပျံချီ, [lɛʔ jà pjàɴ tɕʰì]; d. c. April 1413) was governor of Prome (Pyay) from 1390 to 1413.
The governor, a Martaban–Hanthawaddy royal, was a key Ava commander in the Forty Years' War against Hanthawaddy Pegu.
[3] Kyin remained loyal to his father-in-law who in 1384 decided to revolt against the new king at Pegu, Razadarit.
Their rebellion in the Irrawaddy delta lasted for the next five years with the help of King Swa Saw Ke of Ava.
[note 2] He ruled, Prome, a key province and the gateway to Upper Burma for the next 22+ years.