GKS

GKS may refer to:

• GkS 1005 fol., an important medieval Icelandic manuscript
• Gottfried Keller-Stiftung, a foundation and Cultural Heritage in Switzerland
• Graphical Kernel System
• Den gamle kongelige samling (The Old Royal Collection) in the Royal Library, Denmark

It may also refer to Górniczy Klub Sportowy, meaning "Mining Sports Club", a common name for Polish sports clubs:

Association football:

• GKS Bełchatów
• GKS Jastrzębie
• GKS Piast Gliwice
• GKS Katowice
• GKS Górnik Łęczna
  • GKS Górnik 1979 Łęczna, a short lived fan-owned phoenix club
  • GKS Górnik Łęczna (women's football), women's football section of the club
• GKS Victoria Jaworzno
• GKS Tychy

Ice hockey:

• GKS Katowice (ice hockey)
• GKS Tychy (ice hockey)
• JKH GKS Jastrzębie

Volleyball:

• GKS Płomień Milowice

Stadiums:

• Stadion GKS, a multi-purpose stadium in Bełchatów, Poland
• Stadion GKS Katowice a football stadium