GKS

GKS may refer to:


 * GK Software, a German enterprise software developer
 * Gifted kid syndrome, a syndrome for gifted kids and former gifted kids
 * Goskomstat, in the Soviet Union; now the Russian Federal State Statistics Service
 * Gottfried Keller-Stiftung, a foundation and Cultural Heritage in Switzerland
 * Graphical Kernel System, a computer graphics standard
 * Stadion GKS, a multi-purpose stadium in Bełchatów, Poland
 * Den gamle kongelige samling (The Old Royal Collection) in the Royal Library, Denmark