Nga Yamankan (Burmese: ငရမန်ကန်း, pronounced [ŋə jəmàɰ̃ɡáɰ̃]; c. 1039–1084) was Governor of Pegu (Bago) from 1077 to 1084, who raised an unsuccessful rebellion against Saw Lu of Pagan Dynasty.
Lu proved an ineffective ruler, and over time, Yamankan became convinced that he could successfully break away.
The captive king trusted his childhood friend and captor Yamankan more than his brother Kyansittha.)
Yamankan himself was ambushed by the sniper bow-shot of Nga Sin the hunter and died.
Furthermore, at least one 18th century Mon language chronicle says the first governor of Pegu in the Pagan period was appointed only in 1273/74.