GBT

GBT may refer to:

Transport

 * Gambat railway station, in Pakistan
 * Gorgan Airport, in Iran
 * Gotthard Base Tunnel, in Switzerland
 * Greater Bridgeport Transit Authority, in Connecticut

Other uses

 * Gelora Bung Tomo Stadium, in Surabaya, Indonesia
 * Generalised beam theory, in structural engineering
 * Global Bio-Chem, a Hong Kong biotechnology company
 * Government and binding theory, in linguistics
 * Great Baikal Trail, a Russian environmental organisation
 * Green Bank Telescope, in West Virginia
 * G-TELP Business Test, English language test
 * Gwinnett Ballet Theatre, in Lawrenceville, Georgia, United States