WKT may refer to:
- Well-known text, a text markup language for representing vector geometry objects on a map
- WKT (sealant), a marine sealant
- West Kowloon Terminus, a railway station in Hong Kong scheduled for completion in 2015
WKT is sealing compound which was developed by Paul Pietzschke, Chemisch-Technische Fabrik, Hamburg, Germany in 1962 specifically to meet the stringent requirements in the yacht and ship building industry. WKT belongs to the silicone group of sealants.