From en.wikipedia.org:
GCT may refer to:
** Medicine
- Germ cell tumor
- Giant-cell tumor of bone
- Glucose challenge test
- Granulosa cell tumor
** Transport
- Gauge Change Train , a Japanese train
- Ghazipur City railway station , in Uttar Pradesh, India
- Grand Canyon Bar 10 Airport , in Arizona, United States
- Grand Central Terminal , in New York City
- Great Coates railway station in England
- Grimsby-Cleethorpes Transport , former municipal bus company of Grimsby and Cleethorpes , England
- Gwinnett County Transit , in Georgia, United States
** Other uses
- Galapagos Conservation Trust , a British charity
- Geometric complexity theory
- German Colonial Tovar dialect of German, spoken in Venezuela
- Global Champions Tour , a show jumping series
- _Gloucester County Times_ , a daily newspaper in New Jersey
- Government College of Technology (disambiguation)
- Grand Chess Tour , an annual circuit of chess tournaments
- Grande Cadence de Tir (GCT) 155mm , French self-propelled artillery vehicle
- Green Card Test , used by the United States Internal Revenue Service
- Green Crescent Trust, in Sindh, Pakistan
- Greene County Tech School District , in Greene County, Arkansas, United States
- Greenwich Civil Time , an obsolete term for what is now known as Greenwich Mean Time
- Greenwood Community Theatre , in South Carolina, United States
- GCT, a codon for the amino acid Alanine
[disambiguation]