Sao Edward Yang Kyein Sai (, , 1918–1971) was the last traditional ruler (saopha) of the Chiefdom of Kokang from 1949, upon the death of his father, saopha Sao Yang Wen Pin, until he abdicated in 1959.
Yang's sister, Olive Yang, was a prominent opium warlord, recruited by Khin Nyunt in the late 1980s to help broker ceasefires in Burma with ethnic rebel groups.