GKO (disambiguation)

GKO may refer to:


 * GKO (Russian: Государственное Краткосрочное Обязательство, Gosudarstvennoye Kratkosrochnoye Obyazatyelstvo), a Russian bond issued in the mid-1990s
 * Ancient Greek language
 * GKO construction, in conformal field theory
 * Gunna Kalan railway station, in Pakistan
 * Kok-Nar language
 * State Defense Committee (Russian: Государственный комитет обороны, Gosudarstvennyj komitet oborony) of the USSR