GKS
GKS is an abbreviation for:
- Gottfried Keller Foundation , an art foundation in Switzerland
- Upper and lower case , see upper case
- Association of Catholic Soldiers GKS, Association of Catholic Soldiers in the Bundeswehr
- Graphical Kernel System or Graphic Kernel Standard , a graphical core system according to DIN 66252
- Schweinfurt joint power plant, coal-fired power plant with attached waste incineration plant
- Large crisis management team , common abbreviation for the federal government's crisis management team during the 'German Autumn'
- Whole-body vibrations , see human vibration
- Glasgow Coma Scale , the German-language name for the Glasgow Coma Scale
- Powiat Kościerski in the Pomeranian Voivodeship, Poland (license plate)