Major General Kouprasith Abhay (nicknamed 'Fat K') was a prominent military leader of the Kingdom of Laos during the Laotian Civil War. Scion of a socially prominent family, his military career was considerably aided by their influence. In early 1960, he was appointed to command of Military Region 5, which surrounded and included the capital of Vientiane. Removed from that command on 14 December for duplicitous participation in the Battle of Vientiane, he was reappointed in October 1962. He would hold the post until 1 July 1971, thus controlling the troops in and around the capital. Over the years, he would be involved in one way or another in coups in 1960,1964,1965,1966, and 1973. His service was marked by a deadly feud with another Lao general, Thao Ma; the feud was largely responsible for the latter two coup attempts against the government.
After the Royal Lao Government fell to the communists in 1975, Kouprasith retired to France.
Major General Kouprasith Abhay (1926–1999?) (Order of the Million Elephants and the White Parasol) was the son of Kou Abhay. The Abhays were an aristocratic family of Chinese-Lao heritage from extreme southern Laos, on Khong Island, which is sited in the Mekong River near the Cambodian border.Siho Lamphouthacoul, who was younger than Kouprasith, was raised as a protege of the Abhay household. For unknown reasons, Siho resented this. Kouprasith Abhay was also related to the influential Sananikone family. His mother was a Sananikone. Kouprasith would also marry into the Sananikone family.